Product · mBLEchat
No internet? No problem. Chat that finds its way anyway.
mBLEchat is mesh-based chat over Bluetooth — phone to phone, with no Wi-Fi, no mobile data, and no server in between. Messages hop through the mesh, device to device, until they reach you.
What it is
Chat that doesn't need a network to work.
Phone to phone, directly
Chat over Bluetooth — no Wi-Fi, no mobile data, no servers in between. Two phones near each other can talk without either one having a connection.
Messages find their way
Each message hops device to device through the mesh until it reaches its destination — offline-first by design. Send now, deliver when paths cross.
No accounts, no tracking
Nothing to sign up for and nothing to leak. Privacy by design, not as an afterthought.
Your key is your identity
End-to-end encrypted, keyed to you rather than to a phone number or an account a server can look up.
How the mesh works
Built on open, well-understood mesh networking — not a black box.
Every node relays for its neighbors, so coverage grows with the number of phones nearby rather than depending on a single hop.
Messages carry a time-to-live and hop count, so they expire cleanly instead of circulating the mesh forever.
Devices announce themselves and sync only what's missing between them — no unnecessary chatter over the air.
A message that reaches you by two paths still arrives once — no double delivery in a noisy mesh.
Built for the real world
Designed to keep working when it matters most.
- Keeps relaying in the background without draining the battery
- Finds nearby devices passively — no manual scanning
- Pair once, stay connected — no re-pairing every session
- Bluetooth permissions that never touch your location
- Runs from Android 8 (2017) through Android 16 (2026)
- Built for disaster response and areas with no reliable network
Why mBLEchat
Free. Private. Nothing to sign up for.
No subscription, no paid tier, no in-app purchases — free to use, full stop.
Message routing and encryption happen entirely on the phone — nothing routes through a server you don't control.
No sign-up, no phone number, no email — your public key is your identity, not a profile someone can look up.
Relays in the background without hammering the battery — designed to still be running hours into an outage.
Need messaging that doesn't depend on a network?
Disaster response, remote sites, events with no signal — tell us the scenario and we'll tell you what a mesh deployment looks like.
Email info@neithsystems.com