The #1 open-source GNSS/GPS app on Android. No ads, no trackers, just data.
Published by  barbeauDev
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Varies with device
GPSTest APK Description
GPSTest displays real-time information for satellites in view of your device. A vital open-source testing tool for platform engineers, developers, and power users, GPSTest can also assist users in understanding why their GPS/GNSS is or isn't working.
*Dual-frequency GNSS requires device hardware support and Android 8.0 Oreo or higher. More at https://medium.com/@sjbarbeau/dual-frequency-gnss-on-android-devices-152b8826e1c.
Menu options: • Inject Time Data - 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 http://goo.gl/3RjWX for details on gpsOneXTRA) • Clear Assist 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 - Switch between light and dark themes, change map tile type, auto-start GPS on startup, minimum time and distance between GPS updates, keep screen on.