Obscura
Zero-Cloud, Offline E2EE Privacy Messenger & Cryptographic Key Vault
No servers. No accounts. No trace.
Traditional messaging platforms claim end-to-end encryption, yet their ciphertext constantly routes through central servers where metadata, IP addresses, contact books, and activity timestamps are logged.
Obscura is engineered with a radical alternative: a 100% offline, zero-cloud architecture. It requires zero phone numbers, zero email registrations, and maintains zero servers. Encryption keys are negotiated peer-to-peer via high-density QR handshakes or pre-shared secrets. Messages are encrypted locally on your device using Curve25519 Elliptic Curve Diffie-Hellman (ECDH) and ChaCha20-Poly1305, allowing you to transport encrypted drops over any channel—SMS, WhatsApp, Signal, AirDrop, or email—without anyone eavesdropping.
Curve25519 & ChaCha20-Poly1305
State-of-the-art elliptic curve cryptography for key exchange coupled with 256-bit authenticated encryption (AEAD) for every message.
Zero Cloud Relays
Zero cloud infrastructure. The app communicates with no external message servers, collects no analytics, and creates no network attack surface.
Steganographic Cloaking
Disguise raw cryptographic cipher payloads as casual everyday conversations or innocent emoji sequences to defeat traffic inspection.
Instant Clipboard Auto-Decrypt
A clipboard watcher matches incoming cipher payloads against your vault keys the moment you switch apps.
Hardware-Backed Key Storage
Keys remain sealed inside the iOS Keychain & Android Keystore, gated behind local biometric authentication and master PIN verification.
Obscura Pro Membership
Unlocks unlimited key pairs, custom contact avatars, and encrypted audit exports. Verified securely via RevenueCat without compromising personal identity.