When there is no signal — at home, in a crowd, in a disaster — Lemniscate devices talk to each other directly over Bluetooth and pass encrypted messages along, device to device.
Call a nearby contact with no internet and no SIM — talk in real time over Bluetooth, like the offline calling on some new phones. Honest range: close by, standard Bluetooth.
Send pictures and files straight over the mesh. The app splits them into pieces and rebuilds them on the other side, re-fetching anything the radio drops — so nothing arrives half-broken.
Record and send a voice note with no connection at all — it travels the same encrypted way as text and images.
Your phone sends messages straight to nearby Lemniscate devices over Bluetooth — no internet, no SIM, no servers, no cell towers.
Other Lemniscate devices pass your message along — across up to 10 hops. Relaying devices only see encrypted data: end-to-end encryption stays fully intact, and even the recipient address travels as a hash.
Waiting messages show 🕓. If not enough devices are nearby, the message is marked ✗ "not delivered" after a few minutes — no false hope, one tap to retry.
Bluetooth range depends on devices, walls and surroundings — here are honest numbers.
Real-world range varies with device model, Bluetooth version, walls and interference. The more people run Lemniscate nearby, the stronger and farther the mesh reaches.
You choose which one runs. Both together do not work reliably: on most phones they share one chip and interfere with each other.
Short range, no location needed, easy on the battery. Up to 20 hops from device to device.
More range and much larger messages. Android requires system location to be switched on for this — without it, devices cannot find each other.
Wi-Fi Direct needs hardware that some phones simply do not have. The app says so instead of leaving a button that does nothing.
In the app: Menu → Offline mode. Green means running, red means off, grey means this phone cannot do it. Tapping one radio switches the other off.
Basement, garden, thick walls, villages with weak coverage — messages still find their way.
Festivals, stadiums, demonstrations — where networks collapse under load, devices connect directly.
Power cut, storm, earthquake: when infrastructure fails, every Lemniscate phone becomes part of the network that keeps people connected.
The offline queue is already live for everyone: messages written without a connection are never lost — they wait, send automatically when you're back online, and are honestly marked "not delivered" if it takes too long. The Bluetooth radio itself arrives with the native mobile apps, where the operating system allows direct device-to-device transmission.
One messenger for both worlds — end-to-end encrypted over the internet today, over the mesh tomorrow.
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