GPS drops out or the map jumps

GPS doesn't see well indoors, on stairs or in enclosed places. In those stretches, Stamina uses the phone's steps and barometer: distance keeps adding up and elevation is still measured.

If before you start you see “No GPS: the phone still measures it”, distance is measured with those sensors. To save the run, GPS still needs to draw the map.

Check your location

• Stamina needs location “While Using the App” and “Precise Location”. With approximate location there's no map.
• If you see “Location off” or “Approximate location”, tap the notice: it explains how to turn it on and takes you there with “Open Settings”.
• If location is off for all apps, turn it on in your phone's Settings: on iOS, under Privacy & Security; on Android, under Location.

If it turns off mid-run

You see “Location turned off: the map stopped moving”. The run keeps timing, but without location the map doesn't move, and without a map the run can't be saved.

Why the route looks clean

Stamina cleans up the route: it drops inaccurate or impossible points, removes fake movement when you're standing still and smooths the line without cutting corners. The distance comes from that clean line. If you're standing still, your dot doesn't move on the map.