Off vs Obliv

Off-Grid is a secure, serverless messenger built for people who take privacy seriously. Messages travel peer-to-peer over Bluetooth mesh — no servers, no accounts, no logs. When you send a message, it hops through nearby devices to reach its destination. Nothing touches the internet. SECURE BY · End-to-end encrypted with AES-256-GCM · Zero metadata — no sender, no timestamp, no read receipts stored anywhere · Messages exist only in RAM — close the app, they're gone · No account registration, no phone number, no email MESH NETWORKING · Works without Wi-Fi or cellular · Range extends through every device running DataSec nearby · Location-based channels let you communicate with people in the same area · Direct encrypted messages to specific peers ENCRYPTED VOICE CALLS (Pro) · Real-time P2P encrypted voice calls · Voice effects — Deep, High, Robot · No call servers log your conversations OPERATIONAL SECURITY · PIN lock with biometric authentication · Lockout after failed attempts — survives app kill · Auto identity rotation — randomizes your alias every 4 seconds · Panic wipe DataSec does not have access to your messages. We cannot read them, hand them over, or be compelled to produce them. There is nothing to produce. This software is subject to U.S. export control laws (EAR). ECCN 5D002, CCATS Z1894258. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Obliv is a messenger for people who want their conversations to actually disappear. No phone number. No email. No backups. No recovery. Just a six-digit PIN you memorise, and messages that vanish from our servers the moment your device acknowledges them. End-to-end encrypted on your device before anything leaves it. The server is zero-knowledge — it cannot read, index, or recover what you send. Features • Text, photo, video, voice notes, and files • Encrypted audio and video calls with native iOS call integration • Private group chats with automatic key rotation when membership changes • Contact exchange by QR code or short ID — no directory, no lookups, no phone book • Panic wipe after repeated wrong PIN attempts. No recovery. No exceptions. • Screenshot and screen-recording protection on sensitive screens • No analytics. No crash reporting. No advertising. No third-party tracking. • PIN-only unlock. No biometrics. No device-key storage. Threat model Obliv is designed for people who expect their devices to be seized, inspected, or lost. Your identity lives on-device, encrypted with a key derived from your PIN using a slow, brute-force-resistant function. Biometrics are deliberately unsupported — no one can unlock Obliv by holding your phone up to your face. If you forget your PIN, the identity is gone. This is the point. What we store On our servers: public keys so peers can find you, transient encrypted envelopes that are deleted the moment your device acknowledges them, and opaque push tokens for wake-up notifications. Nothing else. No message content, no contact lists, no conversation history, no behavioural data. Limitations Obliv is intentionally single-device. Multi-device support widens the attack surface and is not supported. If you reset your phone or reinstall Obliv, you start over. Obliv is independent. Not affiliated with Signal, Telegram, WhatsApp, or any other messenger.