PrivaMesh is a serverless, end-to-end encrypted iPhone messenger with no account database, phone number, email, ads, trackers, or analytics. Identity and messaging keys live in the iOS Keychain; contacts and history stay on-device. X3DH, Double Ratchet, fresh per-message keys, fixed-size padding, one-time addresses, and cover traffic protect conversations while a public, decentralized transport carries only ciphertext.