Mock LocationWhat does Mock Location do?
It changes your Android location to a point you pick on the map: the GPS and network providers start reporting it to every app that asks the system for its location.
You pick a point by tapping the map or find it with search — and instead of your real coordinates the system starts reporting the chosen ones; there is no separate “start” button to press. This is Android's own mechanism: developer options have a “Select mock location app” item, and spoofing only works while you have chosen Mock Location there yourself.
The mock location stays on while the background service is running — you can see it by the persistent notification in the notification shade. While it is active, every app on the phone gets the coordinates, not just one: Android does not let anyone “fool” one app while giving honest coordinates to another.
Once spoofing stops, the app returns to your real location and shows it on the map. Restarting the phone does not reset an active mock location — it is restored automatically.
This mechanism is the same for every spoofing app — what differs is what is built around it: how the apps differ from each other.