Trail Sense

4.5
1.08K reviews
100K+
Downloads
Content rating
PEGI 3
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

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 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/
Updated on
Nov 22, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.5
1.05K reviews
Michael Foulk
October 15, 2025
I was just looking for a compass, but I found the ultimate doom day tool. Trail Sense even provides a way to navigate back to the nearest cell tower. I live in the city and was just playing around with stuff. 10/10
Did you find this helpful?
Trail Sense
October 15, 2025
Thank you!
Soar -
October 22, 2025
Trail Sense is a great app, and the developer is responsive and kind. It's incredibly useful on the trail and off. The app is open source, which is a tremendous benefit. Thank you for Trail Sense!❤️👍
1 person found this review helpful
Did you find this helpful?
Trail Sense
October 22, 2025
Thank you!
Vinz clortho
July 20, 2025
A true all in one app. I would give 10⭐s if I could. I cannot thank you enough for a truly free app that is better than 90% of the paid alternatives. Metal detector, maps, survival guide, compass. this app has every tool I could want. I literally uninstalled 3 paid apps because this is just better. thank you again
8 people found this review helpful
Did you find this helpful?
Trail Sense
July 21, 2025
Thank you!

What’s new

Navigation
- Setting to lock bearing to location
- Show destination bearings on navigation sheet

Map / Photo Maps
- Show DEM elevation of long pressed location
- Remember map state (zoom, pan, mode) - Map tool only

Bubble Level
- Keep screen on

Augmented Reality
- Setting to show astronomy below horizon

Misc
- Report lower compass accuracy when near metal
- Pin Map tool to bottom navigation for new users
- Setting to hide system UI in night mode