GPS works with no cell signal. Your track, pins, routes, heading, and saved places stay on this phone. SOS is on this page. In an emergency, always call 911.
Save this area
You have a signal. Save satellite photos and trail places now. After that, the map, your track, and SOS work with no signal.
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Pinch with two fingers to zoom. Drag with one finger to move the map.
Record a trail, then this points you back to the start.
Yellow line is the trail to retrace. The arrow is the compass direction to the start.
Pinned heading
Not pinned
Choose a direction and keep walking that way.
Drag the dial, drag on the map, or type degrees. 0° is north. The arrow shows how far you are turned from this heading.
Pins, landmarks, planned routes, a pinned heading, and hiking places are saved on this phone and work offline.
Plan route
Tap the saved map to add points. The plan is a dashed blue line. The yellow line is the trail you walked. The route editor further down is a separate waypoint list you can text or export.
Share my trip
After a route is saved, set the day and time you expect to be back, then share it before you lose signal. This app cannot call 911 later by itself, and it cannot reach anyone with no signal. The people you text should call 911 if you are not back.
Phone numbers, comma-separated (saved on this phone)
See LeafHiking
A short look at the app. The tools above keep working with no signal after you open this page once online.
In an emergency, always call 911.
Honest note about satellite
No web or regular app can use your phone’s satellite radio. LeafHiking works offline with GPS (no signal needed) and queues your SOS text to send when any signal returns. For satellite with no signal, use your phone’s built-in feature:
iPhone 14+ (iOS 16.1+): Call 911. If it can’t connect, tap Emergency Text via Satellite, go outside with a clear sky view and follow the on-screen pointing guide. You can also open Messages, text 911, and choose Satellite.
Android (Pixel 9+, Galaxy S25 and others): Dial 911. If it fails, tap Satellite SOS / “Use satellite”, answer the questions, and point the phone at the sky as shown.
Always try 911 first — emergency calls can use any carrier’s network. Devices like Garmin inReach or ZOLEO also send satellite SOS.