CollaChat vs Doma

CollaChat is an open source private and decentralized messaging app owned by no one and everyone. It is aimed to leverage blockchain technology to put users back in control of their digital communication, while preserve user experiences that they know and love. Distinguished from the traditional messaging apps, CollaChat has three most important features which revolutionize the communication infrastructure: - Decentralized Colla Network is an unstoppable Web3 decentralized peer-to-peer communication and storage network, Colla DApp (e.g. CollaChat) connects to it via Colla Node. There is no centralized storage and control of user data, users can specify which Node(s) or even easily setup own Node(s) to connect to. - End-to-End Encrypted All messages are end-to-end encrypted, only author and intended recipients can see the content. - Open Source Both Colla Network client side (i.e. Colla DApp, e.g. CollaChat) and server side (i.e. Colla Node) are free and open source for anyone to download, install, run and build own deployment. CollaChat supports Web/Mobile/Desktop and Multi-device. It has most popular messaging and social functions: - Chat (supports text, emoji, voice, photo, video, file, card, supports group chat, supports offline messaging) - Voice/Video Call (supports group call) - Collection & Note - Channel Moreover, it provides some useful privacy protection functions: - Message Self-destruction - Message Recall - Contact/Chat Lock

Doma is a private messenger for exactly two people — you and your partner, in one shared home. One of you creates the home and shows a QR code. The other scans it, with the camera or from a screenshot, and you're connected. No sign-up, no phone numbers, no accounts. EVERYTHING YOU NEED, NOTHING YOU DON'T • Messages, photos and videos • Voice messages with an on-device transcript • Send your location, or share it live for one hour • Edit or delete your messages for both of you • Delivered and read ticks • Turn any message into a reminder, a note or a calendar event PRIVATE BY DESIGN • End-to-end encrypted: messages, photos, voice and location are encrypted on your iPhone with a key that only your two devices have. • Stored in your own iCloud. We run no servers and cannot read anything you send. • Notifications just say "New message in Doma" — never the content. • No ads, no tracking, no analytics. • Either of you can disconnect at any time. Doma is made for couples who want one quiet place for the two of them.