Communicate freely, even when the internet is down. Noghteha (meaning "dots" in Persian) is a privacy-first messenger that works without internet. Using Bluetooth and WiFi Aware mesh networking, your messages hop from phone to phone, creating a resilient network perfect for protests, festivals, emergencies, or areas with poor connectivity. WORKS OFFLINE • Bluetooth mesh networking (10-100m range) • WiFi Aware for faster local transfers (~50m range) • Messages relay through nearby devices automatically • No internet, no cell service, no problem • Optional online mode via Tor and Nostr protocol for global reach PRIVACY BY DESIGN • No phone number or email required • No account registration • No data collection or analytics • Messages never stored on servers • Your identity stays on your device • BLE address rotation to prevent tracking INDEPENDENTLY AUDITED SECURITY • End-to-end encryption (Noise Protocol XX + ChaCha20-Poly1305) • Forward secrecy — past messages stay safe even if keys compromised • Argon2id key derivation for channel passwords • Encrypted local database (SQLCipher AES-256) • Hardware-backed key storage (Android Keystore with StrongBox) EMERGENCY FEATURES • Panic Mode — one tap to securely wipe ALL app data • 3-pass secure deletion ensures data is unrecoverable • 3-level stealth mode for reduced Bluetooth visibility FULL-FEATURED MESSAGING • Create and join channels (public or password-protected) • Text messages with @mentions • Voice notes with waveform visualization • Image and file sharing (up to 100MB) • Message replies and link previews • Location-based channels to connect locally • IRC-style commands (/join, /who, /msg, and more) BEAUTIFUL DESIGN • Full RTL support • Vazirmatn font for perfect Persian typography • Dark and light themes • Material You dynamic colors (Android 12+)