Off vs DoU

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/

DoU is a messaging app designed with a strong focus on user privacy. Unlike traditional messaging apps, DoU is not based on contacts but on an invitation-based system, allowing only invited users to communicate within chat rooms. Without unnecessary connections, DoU provides a simple and trustworthy privacy messenger where you can safely communicate with the people who matter. If the owner deletes the data, it will be removed from the server, and no third parties, including DoU, will have access to it. ■ Features of DoU 1. Place  Create a conversation space called a Place, invite friends you want to chat with, and start private conversations once they accept the invitation. 2. Contact-based Invitations  You can easily invite friends by syncing your contacts. 3. Focused Group Chats  DoU supports group chats with up to 100 participants, enabling more focused conversations and active participation. 4. Chat with Myself  Use the Chat with Myself feature as a personal memo space for notes, to-do lists, and quick ideas. 5. Quick Search  Easily find chat rooms or Places by searching their names. Terms of Use: https://app.chatic.io/policy/terms Privacy Policy: https://app.chatic.io/policy/privacy