bitchat

A secure, decentralized, peer-to-peer messaging app that works over Bluetooth mesh networks. No internet required for mesh chats, no servers, no phone numbers - just pure encrypted communication. Bitchat also supports geohash channels, which use an internet connection to connect you with others in your geographic area.

This is the Android port of the original bitchat iOS app, maintaining 100% protocol compatibility for cross-platform communication.

Features

- Cross-Platform Compatible: Full protocol compatibility with iOS bitchat - Decentralized Mesh Network: Automatic peer discovery and multi-hop message relay over Bluetooth LE - End-to-End Encryption: X25519 key exchange + AES-256-GCM for private messages - Channel-Based Chats: Topic-based group messaging with optional password protection - Store & Forward: Messages cached for offline peers and delivered when they reconnect - Privacy First: No accounts, no phone numbers, no persistent identifiers - IRC-Style Commands: Familiar /join, /msg, /who style interface - Message Retention: Optional channel-wide message saving controlled by channel owners - Emergency Wipe: Triple-tap logo to instantly clear all data - Modern Android UI: Jetpack Compose with Material Design 3 - Dark/Light Themes: Terminal-inspired aesthetic matching iOS version - Battery Optimization: Adaptive scanning and power management

⛔ Warning

This software has not received external security review and may contain vulnerabilities and may not necessarily meet its stated security goals. Do not use it for sensitive use cases, and do not rely on its security until it has been reviewed. Work in progress.