Occulta

In a world where your contacts and trust are locked inside messaging apps, Occulta gives you true control.

Collect verified public keys from friends, family, and colleagues through secure, in-person exchanges using Nearby Interaction — no servers, no phone numbers, no intermediaries.

Once exchanged, encrypt any file, photo, video, or document for anyone in your collection — and share it however you want: AirDrop, email, Messages, chat apps. Your data stays hidden from being analyzed and sold.

Key Features

• Secure, proximity-based key exchange via Nearby Interaction (iPhone 11+) • Encrypt files and messages. • Diceware verification words for easy, human-friendly confirmation • Protected by Apple Secure Enclave — your private keys never leave your device • No accounts, no servers, no tracking — pure offline-first privacy • Quantum threat protection - Quantum computing will be used in the future to derive private key from a public key. We're using ML-KEM 1024 to protect you from this threat. (iOS 26+) • Verify identity - When you receive a suspicious message from one of your contacts whose account was hijacked, send a message to confirm their identity. The contact will sign the response that you can verify. • Shamir Secret Sharing for entries in the vault. • Secure Mode - Coercion-resistant deniability layer

Occulta is the cryptographic address book the world has been missing. Build real trust networks that survive app switches, company shutdowns, account hijacking. Your keys. Your contacts. Your identity.

Forever.