How the child phone supports geofence alerts
For those reports to work well, the phone needs the relevant location permission and background access. Connectivity, battery optimisation and operating-system restrictions can also influence when an update reaches Guardian.
A GPS geofence is an area rather than one perfectly precise coordinate. Normal location variation is especially relevant near large buildings, dense streets and busy school grounds.
That means a geofence alert should be treated as useful phone-location context rather than proof of an exact physical position. Guardian cannot guarantee perfect accuracy and is not an emergency service.
Quick questions
What does the child phone need for Guardian geofence alerts?
The phone needs the relevant location permissions and background access, while connectivity and battery settings also affect reporting.
Why is a GPS geofence an area instead of an exact point?
Phone GPS naturally varies, especially around buildings and busy locations, so a practical boundary needs to allow for normal location drift.
Can a GPS geofence prove exactly where a child is?
No. It reflects the connected phone’s reported location and should not be treated as proof of a person’s exact physical position.