When your phone is offline
How OpenBeacon handles locations while your phone has no connection.
When your phone has no connection, OpenBeacon keeps recording your location. Each location is encrypted straight away and stored on your phone until it can be sent. Nothing is ever stored unencrypted.
When your phone reconnects, the stored locations are sent automatically, oldest first.
Storage limit
OpenBeacon uses at most about 10 MB on your phone for locations waiting to be sent. That's usually a day or two of continuous movement. If you're offline for longer, the oldest stored locations are removed to make room. Your newest location is always kept, so your group sees where you are as soon as you're back online.
If locations were removed, the map shows a banner with the time range that's missing. You can dismiss it. It comes back if more are removed later.
Signing out with locations waiting
When you sign out, OpenBeacon tries for up to 10 seconds to send any waiting locations first. Anything still waiting stays on your phone, encrypted, and is sent the next time you sign in to the same account on the same server.