bitchat is a decentralized peer-to-peer messaging application that operates over bluetooth mesh networks. no internet required, no servers, no phone numbers.

基于蓝牙小范围连接，不需要服务器、账户或用户信息，适合在没有网络的情况下使用

See also:

• Secure messaging, anywhere - Briar

  Censorship-resistant peer-to-peer messaging that bypasses centralized servers. Connect via Bluetooth, Wi-Fi or Tor, with privacy built-in.

  点对点加密通讯工具。无网络时可以使用蓝牙进行通讯。