Protection without surveillance
A security tool should reduce worry without creating a new privacy trade-off. Location checks happen locally.
About the projectPeace of mind,
Peace of mind,
built into the boundary.
GeoFence Guardian began with a clear idea: your Android device should be able to watch its own perimeter—privately, simply, and with a response you cannot miss.
The purpose
Security can be both direct and respectful.
The app creates a temporary safety zone around your current position. Once active, the centre stays fixed while GeoFence Guardian monitors the device from the background.
If the device leaves that boundary—or loses its monitored network connection—the alarm responds. Stopping it requires secure authentication, so protection cannot be casually dismissed.
What guides us
Designed around trust.
Every product decision starts with the person carrying the device.
Control stays with the owner
Sensitive actions use Android’s biometric and device-credential safeguards.
Alerts should be unmistakable
A perimeter breach or network loss triggers a persistent audio, vibration, and visual response.
Under the hoodPurposeful technology.
Purposeful technology.
Fewer dependencies.
01
Open maps
OpenStreetMap and OSMDroid provide the visual map experience without a Google Maps API key.
02
Native location
Android’s framework location providers and a foreground service keep the perimeter monitored.
03
Durable state
An active boundary is stored on-device and can be restored after the phone reboots.
The road aheadSmall project.
Small project.
Serious intent.
The roadmap includes multiple saved zones, configurable alarm sounds, scheduled activation, emergency contacts, and thoughtful battery improvements. Each addition must earn its place without weakening privacy or clarity.
Help shape what’s nextCommunity powered
Support the projectHelp keep protection within reach.
Your support funds careful maintenance, testing, and the next useful improvements to GeoFence Guardian.