Real-time messaging,
mathematically sealed.
Every message, voice recording, and media attachment is encrypted on your device before transmission. Zero server plaintext, zero backdoors, zero compromises.
Architected for Absolute Confidentiality
Engineered from first principles with verified cryptographic primitives.
Double Ratchet Protocol
Continuous Diffie-Hellman and symmetric KDF ratcheting. Generates ephemeral, one-time message keys destroyed immediately after decryption.
Group Sender Keys
High-efficiency encrypted group broadcast. When a participant leaves or is removed, an epoch rotation revokes all past decryption capabilities.
Disappearing Media & View-Once
Timed message expiration and view-once media caches. Cryptographic keys and server ciphertext are automatically purged upon timeout.
Zero-Knowledge Storage
PostgreSQL database and private object buckets receive only AES-256-GCM ciphertexts. Backend admins cannot read messages or decrypt files.
Safety Number Verification
Verify contact keys with 60-digit numeric fingerprints and interactive QR scans to guarantee zero Man-in-the-Middle impersonation.
Multi-Device Pairing
Individual cryptographic identity per device. Remote session revocation instantly locks stolen or compromised hardware out of new messages.