No signal · No servers · No phone number

Messages without
internet

Private, peer-to-peer messaging over a Bluetooth mesh. Your words hop phone-to-phone through the crowd — and reach iPhone and Android alike.

Get the app See how it works
Bluetooth mesh

Your words hop
through the crowd

OffNet Chat sends messages straight between phones over Bluetooth — and other phones running OffNet Chat quietly pass them along. No signal needed, no phone number, no servers.

Three ways to deliver

Choose how
messages travel

Bluetooth mesh when friends are near, Wi-Fi for big photos fast, and an optional internet bridge for friends far away. Three switches at the top of your chats — all yours to flip.

Bluetooth
Wi-Fi
Internet
Private by design

Sealed end
to end

Every message is sealed on your phone and opened only on your friend's. Phones in the middle — and the optional cloud relay — carry nothing but scrambled data.

relay

Talk when the signal can't

Festivals, flights, crowded stadiums, dead zones, or just off the grid — OffNet Chat keeps the conversation going.

Download on theApp Store Coming soon forAndroid