Here's the Android details: https://developer.android.com/training/location/geofencing.html https://developer.android.com/training/location/geofencing.h... Es

Here's the Android details: https://developer.android.com/training/location/geofencing.html https://developer.android.com/training/location/geofencing.h... Essentially - hook into the Phone's location services and perform actions based on either entering or leaving a certain location/radius.