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This GPS Test application displays satellite information and general GPS status. A vital open-source test tool for platform engineers, developers, and power users, GPS Test can also assist users in understanding why their GPS is or isn't working.

Start/stop GPS via the On/Off switch on the Action Bar. After a latitude and longitude has been acquired, you can share your location using the Share button on the Action Bar.

GLONASS satellites are shown as squares on the Sky view, while U.S. NAVSTAR satellites are shown as circles. Both are shown next to the respective GNSS owner's flags on the Status view.

Menu options:
• Inject Time - Injects Time assistance data for GPS into the platform, using information from a Network Time Protocol (NTP) server
• Inject XTRA Data - Injects XTRA assistance data for GPS into the platform, using information from a XTRA server (see for details on gpsOneXTRA)
• Clear Aiding Data - Clears all assistance data used for GPS, including NTP and XTRA data (Note: if you select this option to fix broken GPS on your device, for GPS to work again you may need to ‘Inject Time’ and ‘Inject XTRA’ data)
• Settings - Change map tile type, auto-start GPS on startup, minimum time and distance between GPS updates, keep screen on.

Open-source on Github:

See our FAQ:

GPSTest discussion forum:!forum/gpstest_android

Nostalgic for old releases? Don't have Google Play Services on your device? Download old versions here:

Requires Google Play Services for the Android Maps v2.0.

Want to measure the *true* accuracy of your GPS?

Check out GPS Benchmark:

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Recently changed in this version

v2.1.1 (Android 2.2 and up) - Added magnetic declination correction to show true geographic north on the compass. Expanded GLONASS satellite ID range to include 89-96.

Comments and ratings for GPSTest
  • (70 stars)

    by nikita jain on 18/05/2014

    It does not work......

  • (70 stars)

    by kirill n on 19/04/2014

    Весьма увеличивает количество спутников на связи, повышая точность позиционирования.

  • (70 stars)

    by John Fuller on 11/01/2014

    Don't even consider trying anything else.

  • (70 stars)

    by Glen Ross on 23/12/2013

    Use this app to help jump start the gps signal. Works consistently.

  • (70 stars)

    by Ilija Milicevic on 11/11/2013

    Saw both Navstar and GLONASS sats, lots of useful diagnostics for us spatial data geeks, in my permanent arsenal.

  • (70 stars)

    by Ovidiu Besu on 25/09/2013

    Super simple and efficient tool!

  • (70 stars)

    by Ryan Wick on 14/07/2013

    A great balance of geek and fun in an app. Boy isn't technology amazing.