BARZERO turns nearby phones into an emergency communication network the moment you lose cellular signal — no towers, no internet needed.
Get it on Google PlayFree · Android · No account required
Automatic. Silent. Always ready.
After 60 seconds of no cellular signal, BARZERO activates automatically in the background.
Nearby phones running BARZERO connect via Bluetooth & Wi-Fi Direct — no internet required.
Tap SOS to broadcast your GPS location to all nearby devices instantly.
If any nearby device has internet, your emergency contact automatically receives an SMS with your location.
Core safety — always free. No subscription required.
Monitors signal 24/7. Joins the mesh automatically after 60 seconds of signal loss.
Encrypted messages hop up to 3 devices so you can reach people outside Bluetooth range.
One tap broadcasts your exact location to every device in the mesh — no internet needed.
Group chat works entirely over the mesh. Messages survive screen-off and background.
Add 1 emergency contact. When you tap SOS and a nearby phone has signal, they get a text with your GPS link.
Notify your whole family at once. Safe Check lets you send an "I'm OK" ping without triggering a full SOS.
Anywhere signal disappears, BARZERO keeps you connected.
Dead zones, backcountry, national parks
Overloaded towers, stadium crowds
Tower outages, earthquakes, floods
Underground commutes, parking garages
International trips, rural roads
Any moment where a signal could save a life
Free to download. No account. No data sold. Ever.
Get it on Google Play