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OpenAthena™ for Android

OpenAthena™ lets common drones spot precise locations
New in version 0.25.0
Major release with some minor adjustments
* New and more accurate formula for target location error estimation based on slant range
* Use Copernicus GLO-30 (better accuracy) instead of SRTM for all new DEM downloads
* code cleanup
* Update app, UI, and submodules for Android 15
* update droneModels.json
* fix a crash from orientation change when re-entering app
* add easter egg for extended debug CoT mode enable/disable
* improve reliability of calculation for cropped images
OpenAthena™ is a project that enables consumer and professional drones to identify precise locations based on their images.This is achieved by combining their sensor metadata with an offline digital elevation model to provide the instant location of the observed.🖼️👨.💻 + 🧮 ⛰️ = 🎯📍Use this link for instructions on how to obtain an OpenTopography API key required for OpenAthena.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.25.0 (50) suggested Added on Aug 17, 2025

    This version requires Android 9.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • read locations from your media collection
      Allows the app to read locations from your media collection.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • allow Wi-Fi Multicast reception
      Allows the app to receive packets sent to all devices on a Wi-Fi network using multicast addresses, not just your phone. It uses more power than the non-multicast mode.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
      (12L)
    • read image files from shared storage
      Allows the app to read image files from your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (12L)
    • com.openathena.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 25 MiB PGP Signature | Build Log

  • Version 0.24.0 (48) - Added on May 14, 2025

    This version requires Android 9.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • read locations from your media collection
      Allows the app to read locations from your media collection.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • allow Wi-Fi Multicast reception
      Allows the app to receive packets sent to all devices on a Wi-Fi network using multicast addresses, not just your phone. It uses more power than the non-multicast mode.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
      (12L)
    • read image files from shared storage
      Allows the app to read image files from your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (12L)
    • com.openathena.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 23 MiB PGP Signature | Build Log

  • Version 0.23.0 (46) - Added on Feb 11, 2025

    This version requires Android 9.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • access approximate location only in the foreground
      This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
    • access precise location only in the foreground
      This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
    • read locations from your media collection
      Allows the app to read locations from your media collection.
    • view Wi-Fi connections
      Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
    • allow Wi-Fi Multicast reception
      Allows the app to receive packets sent to all devices on a Wi-Fi network using multicast addresses, not just your phone. It uses more power than the non-multicast mode.
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
      (12L)
    • read image files from shared storage
      Allows the app to read image files from your shared storage.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (12L)
    • com.openathena.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 23 MiB PGP Signature | Build Log