@iluciddreaming: In areas without internet, WeChat, Telegram, and WhatsApp all fail. The open-source project Columba solves this problem—no internet, no base stations, no central servers, but you can still send messages and make voice calls. Based on the Reticulum mesh network protocol, devices connect via Bluetooth, WiFi, …
Summary
Columba is an open-source project based on the Reticulum mesh network protocol, allowing messaging and voice calls over Bluetooth, WiFi, LoRa, etc., without requiring internet, base stations, or central servers, with end-to-end encryption.
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Cached at: 06/30/26, 07:38 AM
In areas without internet, WeChat, Telegram, and WhatsApp all fail.
The open-source project Columba solves this problem — messaging and voice calls work even without internet, cell towers, or central servers.
Based on the Reticulum mesh network protocol, devices connect via Bluetooth, WiFi, LoRa radio, or TCP. As long as a link can be established, a network can be formed.
End-to-end encrypted, no phone number required, identities are generated directly on the device.
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