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data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>History</span> </div> </a> <ul id="toc-History-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Location_industry" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Location_industry"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Location industry</span> </div> </a> <ul id="toc-Location_industry-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Locating_methods" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Locating_methods"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Locating methods</span> </div> </a> <button aria-controls="toc-Locating_methods-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Locating methods subsection</span> </button> <ul id="toc-Locating_methods-sublist" class="vector-toc-list"> <li id="toc-Control_plane_locating" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Control_plane_locating"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Control plane locating</span> </div> </a> <ul id="toc-Control_plane_locating-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Self-reported_positioning" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Self-reported_positioning"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Self-reported positioning</span> </div> </a> <ul id="toc-Self-reported_positioning-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Other"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Other</span> </div> </a> <ul id="toc-Other-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Applications" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Applications"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Applications</span> </div> </a> <button aria-controls="toc-Applications-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Applications subsection</span> </button> <ul id="toc-Applications-sublist" class="vector-toc-list"> <li id="toc-Comparison_of_location_tracking_apps_for_mobile_devices" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Comparison_of_location_tracking_apps_for_mobile_devices"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Comparison of location tracking apps for mobile devices</span> </div> </a> <ul id="toc-Comparison_of_location_tracking_apps_for_mobile_devices-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Mobile_messaging" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Mobile_messaging"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Mobile messaging</span> </div> </a> <ul id="toc-Mobile_messaging-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Privacy_issues" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Privacy_issues"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Privacy issues</span> </div> </a> <ul id="toc-Privacy_issues-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of Contents" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon 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Available in 16 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-16" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">16 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%B2%E0%A5%8B%E0%A4%95%E0%A5%87%E0%A4%B6%E0%A4%A8-%E0%A4%86%E0%A4%A7%E0%A4%BE%E0%A4%B0%E0%A4%BF%E0%A4%A4_%E0%A4%B8%E0%A4%B0%E0%A5%8D%E0%A4%B5%E0%A4%BF%E0%A4%B8" title="लोकेशन-आधारित सर्विस – Bhojpuri" lang="bh" hreflang="bh" data-title="लोकेशन-आधारित सर्विस" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Servei_basat_en_localitzaci%C3%B3" title="Servei basat en localització – Catalan" lang="ca" hreflang="ca" data-title="Servei basat en localització" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Standortbezogene_Dienste" title="Standortbezogene Dienste – German" lang="de" hreflang="de" data-title="Standortbezogene Dienste" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Asukohap%C3%B5hised_teenused" title="Asukohapõhised teenused – Estonian" lang="et" hreflang="et" data-title="Asukohapõhised teenused" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Servicio_basado_en_localizaci%C3%B3n" title="Servicio basado en localización – Spanish" lang="es" hreflang="es" data-title="Servicio basado en localización" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AE%D8%AF%D9%85%D8%AA_%D9%85%D8%A8%D8%AA%D9%86%DB%8C_%D8%A8%D8%B1_%D9%85%DA%A9%D8%A7%D9%86" title="خدمت مبتنی بر مکان – Persian" lang="fa" hreflang="fa" data-title="خدمت مبتنی بر مکان" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9C%84%EC%B9%98_%EA%B8%B0%EB%B0%98_%EC%84%9C%EB%B9%84%EC%8A%A4" title="위치 기반 서비스 – Korean" lang="ko" hreflang="ko" data-title="위치 기반 서비스" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A9%D7%99%D7%A8%D7%95%D7%AA_%D7%9E%D7%91%D7%95%D7%A1%D7%A1_%D7%9E%D7%99%D7%A7%D7%95%D7%9D" title="שירות מבוסס מיקום – Hebrew" lang="he" hreflang="he" data-title="שירות מבוסס מיקום" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%AE%E0%B3%8A%E0%B2%AC%E0%B3%88%E0%B2%B2%E0%B3%8D_%E0%B2%AB%E0%B3%8B%E0%B2%A8%E0%B3%8D_%E0%B2%9F%E0%B3%8D%E0%B2%B0%E0%B3%8D%E0%B2%AF%E0%B2%BE%E0%B2%95%E0%B2%BF%E0%B2%82%E0%B2%97%E0%B3%8D%E2%80%8C" title="ಮೊಬೈಲ್ ಫೋನ್ ಟ್ರ್ಯಾಕಿಂಗ್‌ – Kannada" lang="kn" hreflang="kn" data-title="ಮೊಬೈಲ್ ಫೋನ್ ಟ್ರ್ಯಾಕಿಂಗ್‌" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Location-based_service" title="Location-based service – Dutch" lang="nl" hreflang="nl" data-title="Location-based service" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E4%BD%8D%E7%BD%AE%E6%83%85%E5%A0%B1%E3%82%B5%E3%83%BC%E3%83%93%E3%82%B9" title="位置情報サービス – Japanese" lang="ja" hreflang="ja" data-title="位置情報サービス" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Lokasjonsbaserte_tjenester" title="Lokasjonsbaserte tjenester – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Lokasjonsbaserte tjenester" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/LBS" title="LBS – Piedmontese" lang="pms" hreflang="pms" data-title="LBS" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Location-based_service" title="Location-based service – Russian" lang="ru" hreflang="ru" data-title="Location-based service" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Location-based_service" title="Location-based service – Ukrainian" lang="uk" hreflang="uk" data-title="Location-based service" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%9F%BA%E4%BA%8E%E4%BD%8D%E7%BD%AE%E7%9A%84%E6%9C%8D%E5%8A%A1" title="基于位置的服务 – Chinese" lang="zh" hreflang="zh" data-title="基于位置的服务" data-language-autonym="中文" data-language-local-name="Chinese" 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There might be a discussion about this on <a href="/wiki/Talk:Location-based_service" title="Talk:Location-based service">the talk page</a>.</span> <span class="date-container"><i>(<span class="date">November 2019</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444" /><table class="box-COI plainlinks metadata ambox ambox-content ambox-COI" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span class="skin-invert" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Unbalanced_scales.svg/45px-Unbalanced_scales.svg.png" decoding="async" width="45" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Unbalanced_scales.svg/68px-Unbalanced_scales.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Unbalanced_scales.svg/90px-Unbalanced_scales.svg.png 2x" data-file-width="400" data-file-height="354" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b> A major contributor to this article appears to have a <a href="/wiki/Wikipedia:Conflict_of_interest" title="Wikipedia:Conflict of interest">close connection</a> with its subject.</b><span class="hide-when-compact"> It may require cleanup to comply with Wikipedia's content policies, particularly <a href="/wiki/Wikipedia:Neutral_point_of_view" title="Wikipedia:Neutral point of view">neutral point of view</a>. Please discuss further on the <a href="/wiki/Talk:Location-based_service" title="Talk:Location-based service">talk page</a>.</span> <span class="date-container"><i>(<span class="date">November 2019</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444" /><table class="box-POV plainlinks metadata ambox ambox-content ambox-POV" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span class="skin-invert" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Unbalanced_scales.svg/45px-Unbalanced_scales.svg.png" decoding="async" width="45" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Unbalanced_scales.svg/68px-Unbalanced_scales.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Unbalanced_scales.svg/90px-Unbalanced_scales.svg.png 2x" data-file-width="400" data-file-height="354" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">The <b><a href="/wiki/Wikipedia:Neutral_point_of_view" title="Wikipedia:Neutral point of view">neutrality</a> of this article is <a href="/wiki/Wikipedia:NPOV_dispute" title="Wikipedia:NPOV dispute">disputed</a></b>.<span class="hide-when-compact"> Relevant discussion may be found on the <a href="/wiki/Talk:Location-based_service" title="Talk:Location-based service">talk page</a>. Please do not remove this message until <a href="/wiki/Template:POV#When_to_remove" title="Template:POV">conditions to do so are met</a>.</span> <span class="date-container"><i>(<span class="date">November 2019</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> </div> </div><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p><b>Location-based service</b> (<b>LBS</b>) is a general term denoting software <a href="/wiki/Service_(economics)" title="Service (economics)">services</a> which use <a href="/wiki/Geographic_data_and_information" title="Geographic data and information">geographic data and information</a> to provide services or information to users.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> LBS can be used in a variety of contexts, such as health, indoor <a href="/wiki/Object_detection" title="Object detection">object search</a>,<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> entertainment,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> work, personal life, etc.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Commonly used examples of location-based services include navigation software, <a href="/wiki/Social_networking_services" class="mw-redirect" title="Social networking services">social networking services</a>, <a href="/wiki/Location-based_advertising" title="Location-based advertising">location-based advertising</a>, and <a href="/wiki/Tracking_systems" class="mw-redirect" title="Tracking systems">tracking systems</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> LBS can also include <a href="/wiki/Mobile_commerce" title="Mobile commerce">mobile commerce</a> when taking the form of coupons or advertising directed at customers based on their current location. LBS also includes personalized weather services and even location-based games. </p><p>LBS is critical to many businesses as well as government organizations to drive real insight from data tied to a specific location where activities take place. The spatial patterns that location-related data and services can provide is one of its most powerful and useful aspects where location is a common denominator in all of these activities and can be leveraged to better understand patterns and relationships. Banking, surveillance, <a href="/wiki/Online_commerce" class="mw-redirect" title="Online commerce">online commerce</a>, and many weapon systems are dependent on LBS. </p><p><a href="/wiki/Access_policy" class="mw-redirect" title="Access policy">Access policies</a> are controlled by <a href="/wiki/Location_(geography)" class="mw-redirect" title="Location (geography)">location</a> data or time-of-day constraints, or a combination thereof. As such, an LBS is an information service and has a number of uses in <a href="/wiki/Social_networking" class="mw-redirect" title="Social networking">social networking</a> today as information, in entertainment or security, which is accessible with <a href="/wiki/Mobile_device" title="Mobile device">mobile devices</a> through the <a href="/wiki/Mobile_network" class="mw-redirect" title="Mobile network">mobile network</a> and which uses information on the geographical position of the mobile device.<sup id="cite_ref-qr10_6-0" class="reference"><a href="#cite_note-qr10-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-sst_7-0" class="reference"><a href="#cite_note-sst-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-shuwang_9-0" class="reference"><a href="#cite_note-shuwang-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>This concept of location-based systems is not compliant with the standardized concept of <a href="/wiki/Real-time_locating_system" title="Real-time locating system">real-time locating systems</a> (RTLS) and related local services, as noted in ISO/IEC 19762-5<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> and ISO/IEC 24730-1.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> While networked computing devices generally do very well to inform consumers of days old data, the computing devices themselves can also be tracked, even in real-time. LBS privacy issues arise in that context, and are documented below. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Location-based services (LBSs) are widely used in many computer systems and applications. Modern location-based services are made possible by technological developments such as the <a href="/wiki/World_Wide_Web" title="World Wide Web">World Wide Web</a>, <a href="/wiki/Satellite_navigation" title="Satellite navigation">satellite navigation</a> systems, and the widespread use of <a href="/wiki/Mobile_phones" class="mw-redirect" title="Mobile phones">mobile phones</a>.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>Location-based services were developed by integrating data from <a href="/wiki/Satellite_navigation_systems" class="mw-redirect" title="Satellite navigation systems">satellite navigation systems</a>, <a href="/wiki/Cellular_networks" class="mw-redirect" title="Cellular networks">cellular networks</a>, and <a href="/wiki/Mobile_computing" title="Mobile computing">mobile computing</a>, to provide services based on the geographical locations of users.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Over their history, location-based software has evolved from simple synchronization-based service models to authenticated and complex tools for implementing virtually any location-based service model or facility. </p><p>There is currently no agreed upon criteria for defining the market size of location-based services, but the <a href="/wiki/European_GNSS_Agency" class="mw-redirect" title="European GNSS Agency">European GNSS Agency</a> estimated that 40% of all <a href="/wiki/Computer_applications" class="mw-redirect" title="Computer applications">computer applications</a> used location-based software as of 2013, and 30% of all Internet searches were for locations.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>LBS is the ability to open and close specific data objects based on the use of location or time (or both) as controls and triggers or as part of complex <a href="/wiki/Cryptography" title="Cryptography">cryptographic</a> key or hashing systems and the data they provide access to. Location-based services may be one of the most heavily used <a href="/wiki/Application-layer" class="mw-redirect" title="Application-layer">application-layer</a> <a href="/wiki/Decision_support_system" title="Decision support system">decision framework</a> in computing. </p><p>The <a href="/wiki/Global_Positioning_System" title="Global Positioning System">Global Positioning System</a> was first developed by the <a href="/wiki/United_States_Department_of_Defense" title="United States Department of Defense">United States Department of Defense</a> in the 1970s, and was made available for worldwide use and use by civilians in the 1980s.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> Research forerunners of today's location-based services include the infrared Active Badge system<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> (1989–1993), the <a href="/wiki/Ericsson" title="Ericsson">Ericsson</a>-Europolitan <a href="/wiki/GSM" title="GSM">GSM</a> LBS trial by Jörgen Johansson (1995), and the master thesis written by Nokia employee Timo Rantalainen in 1995.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p><p>In 1990 International Teletrac Systems (later <a href="/wiki/PacTel" class="mw-redirect" title="PacTel">PacTel</a> Teletrac), founded in Los Angeles CA, introduced the world's first dynamic real-time <a href="/wiki/Stolen_vehicle_recovery" class="mw-redirect" title="Stolen vehicle recovery">stolen vehicle recovery</a> services. As an adjacency to this they began developing location-based services that could transmit information about location-based goods and services to custom-programmed alphanumeric <a href="/wiki/Motorola" title="Motorola">Motorola</a> <a href="/wiki/Pager" title="Pager">pagers</a>. In 1996 the US <a href="/wiki/Federal_Communications_Commission" title="Federal Communications Commission">Federal Communications Commission</a> (FCC) issued rules requiring all US mobile operators to locate <a href="/wiki/Emergency_call" class="mw-redirect" title="Emergency call">emergency callers</a>. This rule was a compromise resulting from US mobile operators seeking the support of the emergency community in order to obtain the same protection from lawsuits relating to emergency calls as fixed-line operators already had. </p><p>In 1997 Christopher Kingdon, of Ericsson, handed in the Location Services (LCS) stage 1 description to the joint GSM group of the <a href="/wiki/European_Telecommunications_Standards_Institute" title="European Telecommunications Standards Institute">European Telecommunications Standards Institute</a> (ETSI) and the <a href="/wiki/American_National_Standards_Institute" title="American National Standards Institute">American National Standards Institute</a> (ANSI). As a result, the LCS sub-working group was created under ANSI T1P1.5. This group went on to select positioning methods and standardize Location Services (LCS), later known as Location Based Services (LBS). Nodes defined include the Gateway Mobile Location Centre (GMLC), the Serving Mobile Location Centre (SMLC) and concepts such as Mobile Originating Location Request (MO-LR), Network Induced Location Request (NI-LR) and Mobile Terminating Location Request (MT-LR). </p><p>As a result of these efforts in 1999 the first digital location-based service patent was filed in the US and ultimately issued after nine office actions in March 2002. The patent<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> has controls which when applied to today's networking models provide key value in all systems. </p><p>In 2000, after approval from the world’s twelve largest telecom operators, Ericsson, Motorola and <a href="/wiki/Nokia" title="Nokia">Nokia</a> jointly formed and launched the Location Interoperability Forum Ltd (LIF). This forum first specified the <a href="/wiki/Mobile_Location_Protocol" title="Mobile Location Protocol">Mobile Location Protocol</a> (MLP), an interface between the telecom network and an LBS application running on a server in the Internet domain. Then, much driven by the <a href="/wiki/Vodafone" title="Vodafone">Vodafone</a> group, LIF went on to specify the Location Enabling Server (LES), a "<a href="/wiki/Middleware" title="Middleware">middleware</a>", which simplifies the integration of multiple LBS with an operators infrastructure. In 2004 LIF was merged with the <a href="/w/index.php?title=Open_Mobile_Association&action=edit&redlink=1" class="new" title="Open Mobile Association (page does not exist)">Open Mobile Association</a> (OMA). An LBS work group was formed within the OMA. </p><p>In 2002, Marex.com in Miami Florida designed the world first marine asset telemetry device for commercial sale. The device, designed by Marex and engineered by its partner firms in telecom and hardware, was capable of transmitting location data and retrieving location-based service data via both cellular and satellite-based communications channels. Utilizing the Orbcomm satellite network, the device had multi level SOS features for both MAYDAY and marine assistance, vessel system condition and performance monitoring with remote notification, and a dedicated hardware device similar to GPS units. Based upon the device location, it was capable of providing detailed bearing, distance and communication information to the vessel operator in real time, in addition to the marine assistance and MAYDAY features. The concept and functionality was coined <i>Location Based Services</i> by the principal architect and product manager for Marex, Jason Manowitz, SVP, Product and Strategy. The device was branded as <i>Integrated Marine Asset Management System</i> (<i>IMAMS</i>), and the proof-of-concept beta device was demonstrated to various US government agencies for vessel identification, tracking, and enforcement operations in addition to the commercial product line.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> The device was capable of tracking assets including ships, planes, shipping containers, or any other mobile asset with a proper power source and antenna placement. Marex's financial challenges were unable to support product introduction and the beta device disappeared. </p><p>The first consumer LBS-capable mobile Web device was the <a href="/wiki/Palm_VII" title="Palm VII">Palm VII</a>, released in 1999.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> Two of the in-the-box applications made use of the <a href="/wiki/ZIP_Code" title="ZIP Code">ZIP-code</a>–level positioning information and share the title for first consumer LBS application: the Weather.com app from The Weather Channel, and the<sup id="cite_ref-tarif4you.de_21-0" class="reference"><a href="#cite_note-tarif4you.de-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> TrafficTouch app from Sony-<a href="/wiki/Etak" title="Etak">Etak</a> / Metro Traffic.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p><p>The first LBS services were launched during 2001 by TeliaSonera in Sweden (FriendFinder, yellow pages, houseposition, emergency call location etc.) and by EMT in Estonia (emergency call location, friend finder, TV game). TeliaSonera and EMT based their services on the Ericsson Mobile Positioning System (MPS). </p><p>Other early LBSs include friendzone, launched by swisscom in <a href="/wiki/Switzerland" title="Switzerland">Switzerland</a> in May 2001, using the technology of valis ltd. The service included friend finder, LBS dating and LBS games. The same service was launched later by <a href="/wiki/Vodafone" title="Vodafone">Vodafone</a> Germany, Orange Portugal and Pelephone in <a href="/wiki/Israel" title="Israel">Israel</a>.<sup id="cite_ref-tarif4you.de_21-1" class="reference"><a href="#cite_note-tarif4you.de-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> Microsoft's Wi-Fi-based indoor location system RADAR (2000), MIT's Cricket project using ultrasound location (2000) and Intel's Place Lab with wide-area location (2003).<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p>In May 2002, go2 and <a href="/wiki/AT%26T_Mobility" title="AT&T Mobility">AT&T Mobility</a> launched the first (US) mobile LBS local search application that used Automatic Location Identification (ALI) technologies mandated by the FCC. go2 users were able to use AT&T's ALI to determine their location and search near that location to obtain a list of requested locations (stores, restaurants, etc.) ranked by proximity to the ALI provide by the AT&T wireless network. The ALI determined location was also used as a starting point for <a href="/wiki/Turn-by-turn_navigation" title="Turn-by-turn navigation">turn-by-turn</a> directions. </p><p>The main advantage is that mobile users do not have to manually specify postal codes or other location identifiers to use LBS, when they roam into a different location. </p> <div class="mw-heading mw-heading2"><h2 id="Location_industry">Location industry</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=2" title="Edit section: Location industry"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are various companies that sell access to an individual's location history and this is estimated to be a $12 billion industry composed of collectors, aggregators and marketplaces. As of 2021, a company named Near claimed to have data from 1.6 billion people in 44 different countries, <a href="/wiki/Mobilewalla" title="Mobilewalla">Mobilewalla</a> claims data on 1.9 billion devices, and <a href="/wiki/X-Mode_social" title="X-Mode social">X-Mode</a> claims to have a database of 25 percent of the U.S. adult population. An analysis, conducted by the non-profit newsroom called <a href="/wiki/The_Markup" title="The Markup">The Markup</a>, found six out of 47 companies who claimed over a billion devices in their database. As of 2021, there are no rules or laws governing who can buy an individual's data.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Locating_methods">Locating methods</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=3" title="Edit section: Locating methods"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are a number of ways in which the location of an object, such as a mobile phone or device, can be determined. Another emerging method for confirming location is IoT and blockchain-based relative object location verification.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Control_plane_locating">Control plane locating</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=4" title="Edit section: Control plane locating"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>With <a href="/wiki/Control_plane" title="Control plane">control plane</a> locating, sometimes referred to as positioning, the mobile phone service provider gets the location based on the radio signal delay of the closest cell-phone towers (for phones without satellite navigation features) which can be quite slow as it uses the 'voice control' channel.<sup id="cite_ref-shuwang_9-1" class="reference"><a href="#cite_note-shuwang-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> In the <a href="/wiki/United_Kingdom" title="United Kingdom">UK</a>, networks do not use trilateration; Because LBS services use a single base station, with a "radius" of inaccuracy, to determine a phone's location. This technique was the basis of the E-911 mandate and is still used to locate cellphones as a safety measure. Newer phones and <a href="/wiki/Personal_digital_assistant" title="Personal digital assistant">PDAs</a> typically have an integrated <a href="/wiki/Assisted_GPS" class="mw-redirect" title="Assisted GPS">A-GPS</a> chip. </p><p>In addition there are emerging techniques like Real Time Kinematics and WiFi RTT (Round Trip Timing) as part of Precision Time Management services in WiFi and related protocols. </p><p>In order to provide a successful LBS technology the following factors must be met: </p> <ul><li>coordinates accuracy requirements that are determined by the relevant service,</li> <li>lowest possible cost,</li> <li>minimal impact on network and equipment.</li></ul> <p>Several categories of methods can be used to find the location of the subscriber.<sup id="cite_ref-sst_7-1" class="reference"><a href="#cite_note-sst-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> The simple and standard solution is LBS based on a <a href="/wiki/Satellite_navigation" title="Satellite navigation">satellite navigation</a> system such as <a href="/wiki/Galileo_(satellite_navigation)" title="Galileo (satellite navigation)">Galileo</a> or <a href="/wiki/GPS" class="mw-redirect" title="GPS">GPS</a>. <a href="/wiki/Sony_Ericsson" class="mw-redirect" title="Sony Ericsson">Sony Ericsson</a>'s "NearMe" is one such example; it is used to maintain knowledge of the exact location. Satellite navigation is based on the concept of <a href="/wiki/Trilateration" title="Trilateration">trilateration</a>, a basic geometric principle that allows finding one location if one knows its distance from other, already known locations. </p> <div class="mw-heading mw-heading3"><h3 id="Self-reported_positioning">Self-reported positioning</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=5" title="Edit section: Self-reported positioning"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A low cost alternative to using location technology to track the player, is to not track at all. This has been referred to as "self-reported positioning". It was used in the <a href="/wiki/Mixed_reality_game" title="Mixed reality game">mixed reality game</a> called <a href="/wiki/Uncle_Roy_All_Around_You" title="Uncle Roy All Around You">Uncle Roy All Around You</a> in 2003 and considered for use in the <a href="/wiki/Augmented_reality" title="Augmented reality">Augmented reality</a> games in 2006.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> Instead of tracking technologies, players were given a map which they could pan around and subsequently mark their location upon.<sup id="cite_ref-Flintham2003-URAY_29-0" class="reference"><a href="#cite_note-Flintham2003-URAY-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Benford2004-Error_30-0" class="reference"><a href="#cite_note-Benford2004-Error-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> With the rise of location-based networking, this is more commonly known as a user "<a href="/wiki/Check-in#Social_network" title="Check-in">check-in</a>". </p> <div class="mw-heading mw-heading3"><h3 id="Other">Other</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=6" title="Edit section: Other"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Further information: <a href="/wiki/Mobile_phone_tracking" title="Mobile phone tracking">Mobile phone tracking</a> and <a href="/wiki/Locating_engine" class="mw-redirect" title="Locating engine">Locating engine</a></div> <p>Near LBS (NLBS) involves local-range technologies such as <a href="/wiki/Bluetooth_Low_Energy" title="Bluetooth Low Energy">Bluetooth Low Energy</a>, <a href="/wiki/Wireless_LAN" title="Wireless LAN">wireless LAN</a>, infrared or <a href="/wiki/Near-field_communication" title="Near-field communication">near-field communication</a> technologies, which are used to match devices to nearby services. This application allows a person to access information based on their surroundings; especially suitable for using inside closed premises, restricted or regional area. Another alternative is an operator- and satellite-independent location service based on access into the deep level telecoms network (<a href="/wiki/Signalling_System_No._7" title="Signalling System No. 7">SS7</a>). This solution enables accurate and quick determination of geographical coordinates of mobile phones by providing operator-independent location data and works also for handsets that do not have satellite navigation capability. </p><p>In addition, the <a href="/wiki/IP_address" title="IP address">IP address</a> could provide the end-user's location. </p><p>Many other <a href="/wiki/Local_positioning_systems" class="mw-redirect" title="Local positioning systems">local positioning systems</a> and <a href="/wiki/Indoor_positioning_system" title="Indoor positioning system">indoor positioning systems</a> are available, especially for indoor use. GPS and GSM do not work very well indoors, so other techniques are used, including co-pilot beacon for CDMA networks, Bluetooth, UWB, <a href="/wiki/RFID" class="mw-redirect" title="RFID">RFID</a> and Wi-Fi.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Applications">Applications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=7" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Location-based services may be employed in a number of applications, including:<sup id="cite_ref-sst_7-2" class="reference"><a href="#cite_note-sst-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <ul><li>recommending social events in a city<sup id="cite_ref-qr10_6-1" class="reference"><a href="#cite_note-qr10-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></li> <li>requesting the nearest business or service, such as an ATM, restaurant or a retail store</li> <li><a href="/wiki/Turn-by-turn_navigation" title="Turn-by-turn navigation">turn-by-turn navigation</a> to any address</li> <li>assistive healthcare systems<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup></li> <li>locating people on a map displayed on the mobile phone</li> <li>receiving alerts, such as notification of a sale on gas or warning of a traffic jam</li> <li>location-based mobile advertising</li> <li>asset recovery combined with active RF to find, for example, stolen assets in containers where GPS would not work</li> <li>contextualizing learning and research</li> <li>games where your location is part of the game play, for example your movements during your day make your avatar move in the game or your position unlocks content.</li> <li>real-time Q&A revolving around restaurants, services, and other venues.</li> <li>tracking a <a href="/wiki/NASA" title="NASA">NASA</a> lunar lander.<sup id="cite_ref-nasa_33-0" class="reference"><a href="#cite_note-nasa-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup></li> <li>sending a mobile caller's location during an emergency call using <a href="/wiki/Advanced_Mobile_Location" title="Advanced Mobile Location">Advanced Mobile Location</a></li></ul> <p>For the carrier, location-based services provide added value by enabling services such as: </p> <ul><li><i>Resource tracking with dynamic distribution</i>. Taxis, service people, rental equipment, doctors, fleet scheduling.</li> <li><i>Resource tracking</i>. Objects without privacy controls, using passive sensors or RF tags, such as packages and train boxcars.</li> <li><i>Finding someone or something</i>. Person by skill (doctor), business directory, navigation, weather, traffic, room schedules, stolen phone, emergency calls.</li> <li><i>Proximity-based notification (push or pull)</i>. Targeted advertising, buddy list, common profile matching (dating).</li> <li><i>Proximity-based actuation (push or pull)</i>. Payment based upon proximity (EZ pass, toll watch), automatic airport check-in.</li></ul> <p>In the <a href="/wiki/United_States" title="United States">U.S.</a> the <a href="/wiki/Federal_Communications_Commission" title="Federal Communications Commission">FCC</a> requires that all carriers meet certain criteria for supporting location-based services (FCC 94–102). The mandate requires 95% of handsets to resolve within 300 meters for network-based tracking (e.g. triangulation) and 150 meters for handset-based tracking (e.g. GPS). This can be especially useful when dialing an <a href="/wiki/Emergency_telephone_number" title="Emergency telephone number">emergency telephone number</a> – such as <a href="/wiki/E911" class="mw-redirect" title="E911">enhanced 9-1-1</a> in <a href="/wiki/NANP" class="mw-redirect" title="NANP">North America</a>, or <a href="/wiki/1-1-2" class="mw-redirect" title="1-1-2">112</a> in <a href="/wiki/Europe" title="Europe">Europe</a> – so that the operator can dispatch emergency services such as <a href="/wiki/Emergency_medical_services" title="Emergency medical services">emergency medical services</a>, <a href="/wiki/Police" title="Police">police</a> or <a href="/wiki/Firefighters" class="mw-redirect" title="Firefighters">firefighters</a> to the correct location. CDMA and iDEN operators have chosen to use GPS location technology for locating emergency callers. This led to rapidly increasing penetration of GPS in iDEN and CDMA handsets in North America and other parts of the world where CDMA is widely deployed. Even though no such rules are yet in place in Japan or in Europe the number of GPS-enabled GSM/WCDMA handset models is growing fast. According to the independent wireless analyst firm <a href="/w/index.php?title=Berg_Insight&action=edit&redlink=1" class="new" title="Berg Insight (page does not exist)">Berg Insight</a> the attach rate for GPS is growing rapidly in GSM/WCDMA handsets, from less than 8% in 2008 to 15% in 2009.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p><p>As for economic impact, location-based services are estimated to have a $1.6 Trillion impact on the US economy alone.<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </p><p>European operators are mainly using <a href="/wiki/Cell_ID" class="mw-redirect" title="Cell ID">Cell ID</a> for locating subscribers. This is also a method used in Europe by companies that are using cell-based LBS as part of systems to recover stolen assets. In the US companies such as <a href="/wiki/Rave_Wireless" class="mw-redirect" title="Rave Wireless">Rave Wireless</a> in New York are using GPS and triangulation to enable college students to notify campus police when they are in trouble. </p> <div class="mw-heading mw-heading3"><h3 id="Comparison_of_location_tracking_apps_for_mobile_devices">Comparison of location tracking apps for mobile devices</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=8" title="Edit section: Comparison of location tracking apps for mobile devices"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Currently there are roughly three different models for location-based apps on mobile devices. All share that they allow one's location to be tracked by others. Each functions in the same way at a high level, but with differing functions and features. Below is a comparison of an example application from each of the three models. </p> <table class="wikitable"> <tbody><tr> <th>Function</th> <th><a href="/wiki/Google_Latitude" title="Google Latitude">Google Latitude</a></th> <th><a href="/wiki/Find_My_Friends" class="mw-redirect" title="Find My Friends">Find My Friends</a></th> <th><a href="/wiki/Nearby" title="Nearby">Nearby</a> </th></tr> <tr> <td>Operating systems supported</td> <td><a href="/wiki/IOS" title="IOS">iOS</a>, <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a>, <a href="/wiki/BlackBerry_OS" title="BlackBerry OS">BlackBerry OS</a>, <a href="/wiki/Windows_Mobile" title="Windows Mobile">Windows Mobile</a>, <a href="/wiki/Symbian_S60" class="mw-redirect" title="Symbian S60">Symbian S60</a></td> <td><a href="/wiki/IOS" title="IOS">iOS</a>, <a href="/wiki/IPadOS" title="IPadOS">iPadOS</a>, <a href="/wiki/MacOS" title="MacOS">macOS</a></td> <td><a href="/wiki/Windows_Phone" title="Windows Phone">Windows Phone</a>, <a href="/wiki/Windows_Mobile" title="Windows Mobile">Windows Mobile</a>, Windows 8, <a href="/wiki/IOS" title="IOS">iOS</a>, <a href="/wiki/Facebook" title="Facebook">Facebook</a> </td></tr> <tr> <td><a href="/wiki/Web_application" title="Web application">Web application</a> available</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td></tr> <tr> <td><a href="/wiki/End-to-end_encryption" title="End-to-end encryption">End-to-end encryption</a> (location kept secret from service provider and others) <p><sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> </p> </td> <td></td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td> </td></tr> <tr> <td>User identification</td> <td><a href="/wiki/Google_Account" title="Google Account">Google Account</a></td> <td><a href="/wiki/Apple_ID" class="mw-redirect" title="Apple ID">Apple ID</a></td> <td><a href="/wiki/Facebook" title="Facebook">Facebook</a> </td></tr> <tr> <td>Update frequency of location</td> <td>Dynamically periodic</td> <td>On demand by remote user</td> <td>On demand by remote user </td></tr> <tr> <td>Stale location behaviour</td> <td>Last reported location</td> <td>Unknown location</td> <td>Last reported location </td></tr> <tr> <td>Location history</td> <td>Optional, visible only to tracked user</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No </td></tr> <tr> <td>Temporary location sharing</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes, multiple users with expiry date & time</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No, always shared </td></tr> <tr> <td>Bilateral sharing of location with friends</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes, by default</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No, by default</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes, mandatory </td></tr> <tr> <td>Precision levels configurable on a per-friend basis</td> <td>Best location, city-level or hidden</td> <td>Best location only</td> <td>Best location only </td></tr> <tr> <td>Manually configure location</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td></tr> <tr> <td>Check into nearby place</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No </td></tr> <tr> <td>Custom location labels</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No </td></tr> <tr> <td>Source of friends' names and photos</td> <td>Friends' <a href="/wiki/Google_profile" class="mw-redirect" title="Google profile">Google profiles</a></td> <td>User's own contacts stored locally on device</td> <td><a href="/wiki/Nearby" title="Nearby">Nearby</a> Profile </td></tr> <tr> <td>Maximum distance calculated to friends' locations</td> <td>5000 miles</td> <td>Infinite</td> <td>Infinite </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Mobile_messaging">Mobile messaging</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=9" title="Edit section: Mobile messaging"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Mobile messaging plays an essential role in LBS. Messaging, especially SMS, has been used in combination with various LBS applications, such as location-based mobile advertising. <a href="/wiki/SMS" title="SMS">SMS</a> is still the main technology carrying mobile advertising / marketing campaigns to mobile phones. A classic example of LBS applications using SMS is the delivery of mobile coupons or discounts to mobile subscribers who are near to advertising restaurants, cafes, movie theatres. The Singaporean mobile operator <a href="/wiki/MobileOne" class="mw-redirect" title="MobileOne">MobileOne</a> carried out such an initiative in 2007 that involved many local marketers, what was reported to be a huge success in terms of subscriber acceptance. </p> <div class="mw-heading mw-heading2"><h2 id="Privacy_issues">Privacy issues</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=10" title="Edit section: Privacy issues"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951" /><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/GPS_tracking_unit#Legislation" title="GPS tracking unit">GPS tracking unit § Legislation</a></div> <p>The Location Privacy Protection Act of 2012 (S.1223)<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> was introduced by Senator <a href="/wiki/Al_Franken" title="Al Franken">Al Franken</a> (D-MN) in order to regulate the transmission and sharing of user location data in the United States. It is based on the individual's one time consent to participate in these services (Opt In). The bill specifies the collecting entities, the collectable data and its usage. The bill does not specify, however, the period of time that the data collecting entity can hold on to the user data (a limit of 24 hours seems appropriate since most of the services use the data for immediate searches, communications, etc.), and the bill does not include location data stored locally on the device (the user should be able to delete the contents of the location data document periodically just as he would delete a log document). The bill which was approved by the <a href="/wiki/Senate_Judiciary_Committee" class="mw-redirect" title="Senate Judiciary Committee">Senate Judiciary Committee</a>, would also require mobile services to disclose the names of the advertising networks or other third parties with which they share consumers' locations.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> </p><p>With the passing of the <a href="/wiki/CAN-SPAM_Act_of_2003" title="CAN-SPAM Act of 2003">CAN-SPAM Act</a> in 2003, it became illegal in the United States to send any message to the end user without the end user specifically opting-in. This put an additional challenge on LBS applications as far as "carrier-centric" services were concerned. As a result, there has been a focus on user-centric location-based services and applications which give the user control of the experience, typically by opting in first via a website or mobile interface (such as <a href="/wiki/Text_messaging" title="Text messaging">SMS</a>, mobile Web, and <a href="/wiki/Java_(Sun)" class="mw-redirect" title="Java (Sun)">Java</a>/<a href="/wiki/Binary_Runtime_Environment_for_Wireless" title="Binary Runtime Environment for Wireless">BREW</a> applications). </p><p>The <a href="/wiki/European_Union" title="European Union">European Union</a> also provides a legal framework for data protection that may be applied for location-based services, and more particularly several European directives such as: (1) Personal data: Directive 95/46/EC; (2) Personal data in electronic communications: Directive 2002/58/EC; (3) Data Retention: <a href="/wiki/Data_Retention_Directive" title="Data Retention Directive">Directive 2006/24/EC</a>. However the applicability of legal provisions to varying forms of LBS and of processing location data is unclear.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> </p><p>One implication of this technology is that data about a subscriber's location and historical movements is owned and controlled by the network operators, including mobile carriers and mobile content providers.<sup id="cite_ref-whygeoQ_40-0" class="reference"><a href="#cite_note-whygeoQ-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> Mobile content providers and app developers are a concern. Indeed, a 2013 MIT study<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> by de Montjoye et al. showed that 4 spatio-temporal points, approximate places and times, are enough to uniquely identify 95% of 1.5M people in a mobility database. The study further shows that these constraints hold even when the resolution of the dataset is low. Therefore, even coarse or blurred datasets provide little anonymity. A critical article by Dobson and Fisher<sup id="cite_ref-dandf_43-0" class="reference"><a href="#cite_note-dandf-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> discusses the possibilities for misuse of location information. </p><p>Beside the legal framework there exist several technical approaches to protect privacy using <a href="/wiki/Privacy-enhancing_technologies" title="Privacy-enhancing technologies">privacy-enhancing technologies</a> (PETs). Such PETs range from simplistic on/off switches<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> to sophisticated PETs using anonymization techniques (e.g. providing k-anonymity),<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> or cryptograpic protocols.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> Only few LBS offer such PETs, e.g., <a href="/wiki/Google_Latitude" title="Google Latitude">Google Latitude</a> offered an on/off switch and allows to stick one's position to a free definable location. Additionally, it is an open question how users perceive and trust in different PETs. The only study that addresses user perception of state of the art PETs is.<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> Another set of techniques included in the PETs are the <a href="/wiki/Location_obfuscation" title="Location obfuscation">location obfuscation</a> techniques, which slightly alter the location of the users in order to hide their real location while still being able to represent their position and receive services from their LBS provider. </p><p>Recent research has shown that <a href="/wiki/Crowdsourcing_software_development" title="Crowdsourcing software development">crowdsourcing</a> is also an effective approach at locating lost objects while still upholding the privacy of users. This is done by ensuring a limited level of interactions between users.<sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=11" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 22em;"> <ul><li><a href="/wiki/Advanced_Mobile_Location" title="Advanced Mobile Location">Advanced Mobile Location</a></li> <li><a href="/wiki/Cartography" title="Cartography">Cartography</a></li> <li><a href="/wiki/Dashtop_mobile" title="Dashtop mobile">Dashtop mobile</a></li> <li><a href="/wiki/Dead_reckoning" title="Dead reckoning">Dead reckoning</a></li> <li><a href="/wiki/Enterprise_digital_assistant" class="mw-redirect" title="Enterprise digital assistant">Enterprise digital assistant</a></li> <li><a href="/wiki/Fire_Eagle" title="Fire Eagle">Fire Eagle</a></li> <li><a href="/wiki/Geo_(marketing)" class="mw-redirect" title="Geo (marketing)">Geo (marketing)</a></li> <li><a href="/wiki/Geoloqi" class="mw-redirect" title="Geoloqi">Geoloqi</a></li> <li><a href="/wiki/GeoReader" title="GeoReader">GeoReader</a></li> <li><a href="/wiki/Geosocial_networking" title="Geosocial networking">Geosocial networking</a></li> <li><a href="/wiki/Groundhog_Technologies" title="Groundhog Technologies">Groundhog Technologies</a></li> <li><a href="/wiki/Key_finder" title="Key finder">Key finder</a></li> <li><a href="/wiki/Indoor_positioning_system" title="Indoor positioning system">Indoor positioning system</a></li> <li><a href="/wiki/LocationSmart" title="LocationSmart">LocationSmart</a></li> <li><a href="/wiki/Location_awareness" title="Location awareness">Location awareness</a></li> <li><a href="/wiki/Location_intelligence" title="Location intelligence">Location intelligence</a></li> <li><a href="/wiki/Location-based_game" title="Location-based game">Location-based games</a></li> <li><a href="/wiki/Location-based_media" class="mw-redirect" title="Location-based media">Location-based media</a></li> <li><a href="/wiki/Mobile_dating" title="Mobile dating">Mobile dating</a></li> <li><a href="/wiki/Mobile_identity_management" title="Mobile identity management">Mobile identity management</a></li> <li><a href="/wiki/Mobile_local_search" title="Mobile local search">Mobile local search</a></li> <li><a href="/wiki/Positioning_(telecommunications)" class="mw-redirect" title="Positioning (telecommunications)">Mobile positioning</a></li> <li><a href="/wiki/Navizon" title="Navizon">Navizon</a></li> <li><a href="/wiki/Near-me_area_network" title="Near-me area network">Near-me area network</a></li> <li><a href="/wiki/Real-time_locating" class="mw-redirect" title="Real-time locating">Real-time locating</a></li> <li><a href="/wiki/Reverse_geocoding" title="Reverse geocoding">Reverse geocoding</a></li> <li><a href="/wiki/Social_positioning_method" title="Social positioning method">Social positioning method</a></li> <li><a href="/wiki/Urban_informatics" title="Urban informatics">Urban informatics</a></li> <li><a href="/wiki/Wayfinding" title="Wayfinding">Wayfinding</a></li> <li><a href="/wiki/Wi-Fi_positioning_system" title="Wi-Fi positioning system">Wi-Fi positioning system</a></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Location-based_service&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 35em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFSchillerVoisard2004" class="citation book cs1">Schiller, Jochen; Voisard, Agnès (2004-05-21). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=wj19b5wVfXAC&q=location+based+services&pg=PA1"><i>Location-Based Services</i></a>. Elsevier. p. 9. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-08-049172-1" title="Special:BookSources/978-0-08-049172-1"><bdi>978-0-08-049172-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Location-Based+Services&rft.pages=9&rft.pub=Elsevier&rft.date=2004-05-21&rft.isbn=978-0-08-049172-1&rft.aulast=Schiller&rft.aufirst=Jochen&rft.au=Voisard%2C+Agn%C3%A8s&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Dwj19b5wVfXAC%26q%3Dlocation%2Bbased%2Bservices%26pg%3DPA1&rfr_id=info%3Asid%2Fen.wikipedia.org%3ALocation-based+service" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">B. Guo, S. Satake, M. Imai. <a rel="nofollow" class="external text" href="http://www.ayu.ics.keio.ac.jp/members/bingo/pic/research/sixth-sense/homeexplorer-j-guo.pdf">Home-Explorer: Ontology-based Physical Artifact Search and Hidden Object Detection System</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110904201210/http://www.ayu.ics.keio.ac.jp/members/bingo/pic/research/sixth-sense/homeexplorer-j-guo.pdf">Archived</a> 2011-09-04 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>. Mobile Information Systems, Vol. 4 No.2 (2008), 81–103, IOS Press, 2008.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFB._GuoR._FujimuraD._ZhangM._Imai2011" class="citation journal cs1">B. Guo; R. Fujimura; D. Zhang; M. Imai (2011). 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