offGrd turns every phone around you into a node in a resilient mesh. Encrypted messages hop device-to-device over local Wi-Fi — no towers, no servers, no SIM required. Built for festivals, stadiums, travel, and anywhere signal goes to die.
Every phone running offGrd is a router. Messages hop peer-to-peer over local Wi-Fi until they reach the person you're talking to — fully encrypted, the whole way.
offGrd broadcasts on local Wi-Fi and instantly discovers every other phone in range — no pairing, no QR codes, no setup.
Your message jumps between phones in short local hops. Each relay sees only ciphertext — the content is unreadable to anyone but the recipient.
The recipient's phone decrypts the message and sends an ACK back through the mesh. You see a double-tick the moment it lands.
Anywhere crowds, travel, or geography break traditional networks — offGrd keeps your people reachable.
60,000 people on one tower means no one gets through. offGrd turns the crowd itself into the network.
Find your seats, your car, your crew — in the places where packed walls block signal and packed crowds max capacity.
No local SIM. No data plan. No problem. Stay in touch with your travel group the moment you land.
Group chats with people physically near you — classmates between buildings, family at the park, friends at a cabin.
If you can use WhatsApp, you can use offGrd. Everything else happens underneath.
NaCl box encryption (Curve25519 + XSalsa20-Poly1305). Relay phones see only ciphertext. Your keys never leave your device.
See exactly who's nearby, how many hops away, and how fresh the route is. Direct peers show as "Direct" — no guessing.
Delivered messages are stored locally and encrypted at rest. Retry and reliable delivery handled transparently by the mesh.
No account. No phone number. No onboarding wait. Your identity is a keypair created locally the first time you launch.
Privacy isn't a setting in offGrd — it's the architecture. There's no central infrastructure to compromise because there's no central infrastructure at all.
We're rolling out iOS access in waves. Join the waitlist and we'll reach out when your region is up.