7ION vs ZIØN

7ION is a secure messenger built on the principles of end-to-end encryption and complete user control. The app is designed for secure business and personal communication. 7ION provides protection for business communications, secure teamwork, and complete privacy for personal conversations. Key advantages: Registration without a phone number An account is created without linking to a SIM card or email. Access is protected by a seed phrase that is generated directly on your device and is never stored on servers. End-to-end encryption by default Your messages are encrypted before they are sent and are not stored on servers. This completely eliminates the risk of data interception on the network, access by providers, or reading of your correspondence by unauthorized persons. 7ION uses modern cryptographic protocols, including Double Ratchet, which means: • each message has a unique encryption key; • previous messages cannot be decrypted; • protection is updated during communication. Secure audio and video calls Voice and video are encrypted in real time. A direct P2P connection ensures that the conversation remains strictly confidential between its participants. Group conversations Create encrypted chats and calls for teamwork. Security is maintained for everyone.

ZIØN is a peer-to-peer, end-to-end encrypted messenger built on one principle: your conversations belong to you and your contact — no accounts, no cloud, no message database. HOW YOUR MESSAGES TRAVEL • On the same network, ZIØN connects your devices directly, device to device. Nothing leaves your local network. • Across different networks, messages are carried by a minimal relay we operate that only forwards already-encrypted bytes. It is zero-knowledge by design: it cannot read your messages, your contacts, or any content — and neither can we. • Optional WAN mode (OFF by default): when you enable it, ZIØN can also open a direct device-to-device connection across the internet via UDP hole punching. Only then does the app contact public IP-discovery services (ipify, ifconfig.me, icanhazip, checkip.amazonaws) to learn its own address for NAT traversal. There are no ZIØN accounts and no cloud storage of your messages. The relay never holds anything it can decrypt. STANDARD CRYPTO, ZERO CUSTOM • Curve25519 + ECDH key exchange • Forward Secrecy with per-session ephemeral keys • Authenticated AES-256-GCM message encryption • HMAC-SHA256 handshake authentication (anti-MITM) • 30-digit Signal-style safety numbers OPERATIONAL PRIVACY • Encrypted local storage • Excluded from iCloud backup • Self-destructing messages with configurable timer • Bidirectional message deletion • One-tap Emergency Wipe • Screenshot blocking, screen-recording detection • Session keys wiped from RAM on idle • Anonymous notifications: "New message" only, no sender or content LOCALIZED IN 6 LANGUAGES English, Italiano, Español, Français, Deutsch, 日本語 HONEST DISCLOSURE ZIØN is experimental software and has not undergone formal independent cryptographic audit. For communications where compromise would cause severe harm, use audited solutions like Signal. ZIØN is designed for users who want a second private channel between trusted devices. REQUIREMENTS iPhone 13 or later. iOS 17 or later. Face ID or Touch ID recommended.