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Trail Sense

Use your phone's sensors to assist with wilderness treks
New in version 6.5.0
Photo Maps
- Add setting to keep PDFs at full resolution
- Show current elevation

Astronomy
- Adjust moon orientation based on location

Convert
- Add millimeters, teaspooons, and tablespoons

Misc
- Allow up to 7 tools in the bottom navigation
- Add system black theme
- Bug fixes
Explore beyond the reaches of the Internet with Trail Sense.


  • Designed for hiking, backpacking, camping, and geocaching

  • Place beacons and navigate to them

  • Use as a compass (only available on devices with a compass sensor)

  • Follow paths

  • Retrace your steps with backtrack

  • Use a photo as a map

  • Plan what to pack

  • Be alerted before the sun sets

  • Predict the weather (only available on devices with a barometer sensor)

  • Use your phone as a flashlight

  • And much more!



Trail Sense is a tool, and just like any other tool that you bring into the wilderness,
it's essential to have backup equipment and skills.
This app is intended for information purposes only and the accuracy of the predictions and sensors are determined by a number of factors, including calibration, sensor quality, external sources, etc.
Use at your own risk, always have backup tools (ex. compass), and stay safe.

This app also does not, and will never, use the Internet - all information in Trail Sense comes directly from your phone's sensors, and no data will leave Trail Sense.

COMMON ISSUES

  • No compass: If your phone does not have a compass sensor, there is nothing I can do to make it work because that is hardware.
    You will still be able to use other features of Trail Sense.

  • No weather: The Weather tool is only available if your phone has a barometer sensor.



Found an issue or want a new feature? Contact me at trailsense@protonmail.com or create a new issue on GitHub: github.com/kylecorry31/Trail-Sense

I'm the only developer of Trail Sense, so I will do my best to help out with issues - but I have a limited device selection to test on.


PERMISSIONS

  • Notifications: Allows Trail Sense to display notifications (backtrack, weather, sunset alerts, astronomy events, water boil timer, etc)

  • Location: Allows Trail Sense to retrieve your location for navigation, weather (sea level calibration), and astronomy.

  • Background location: Allows Trail Sense to retrieve your location for sunset alerts while in the background.
    On some devices, this will also improve the reliability of backtrack and weather monitor.

  • Physical activity: Allows Trail Sense to use your phone's pedometer for distance calculation.

  • Camera: Allows Trail Sense to use your camera on the sighting compass, clinometer, and for taking photos used by the Cloud Scanner, QR Code Scanner, and Photo Maps.

  • Alarms & reminders: Allows Trail Sense to post a notification at an exact time.
    This is used by the Clock tool (when updating system time) and Sunset and Sunrise Alerts.



Links

  • Privacy policy: https://kylecorry.com/Trail-Sense/#privacy

  • FAQ: https://github.com/kylecorry31/Trail-Sense#faq

  • Trail Sense is available under the MIT License: https://opensource.org/license/mit/


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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 6.5.0 (125) suggested Added on Nov 10, 2024

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • access location in the background
      This app can access location at any time, even while the app is not in use.
    • 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.
    • recognize physical activity
      This app can recognize your physical activity.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • android.permission.FLASHLIGHT
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "health"
      Allows the app to make use of foreground services with the type "health"
    • run foreground service with the type "location"
      Allows the app to make use of foreground services with the type "location"
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.kylecorry.trail_sense.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 7.5 MiB PGP Signature | Build Log

  • Version 6.4.0 (124) - Added on Oct 17, 2024

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • access location in the background
      This app can access location at any time, even while the app is not in use.
    • 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.
    • recognize physical activity
      This app can recognize your physical activity.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • android.permission.FLASHLIGHT
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "health"
      Allows the app to make use of foreground services with the type "health"
    • run foreground service with the type "location"
      Allows the app to make use of foreground services with the type "location"
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.kylecorry.trail_sense.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 7.4 MiB PGP Signature | Build Log

  • Version 6.3.0 (123) - Added on Aug 31, 2024

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • access location in the background
      This app can access location at any time, even while the app is not in use.
    • 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.
    • recognize physical activity
      This app can recognize your physical activity.
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • android.permission.FLASHLIGHT
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "health"
      Allows the app to make use of foreground services with the type "health"
    • run foreground service with the type "location"
      Allows the app to make use of foreground services with the type "location"
    • run foreground service with the type "mediaPlayback"
      Allows the app to make use of foreground services with the type "mediaPlayback"
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.kylecorry.trail_sense.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 6.8 MiB PGP Signature | Build Log