Delta Chat

merlinux

About this app

Delta Chat is a reliable decentralized instant messenger that is easy and fun to use for friends, family, groups and organizations. Delta Chat is developed by a dedicated FOSS contributor community that jointly releases refinements and new features several times a year, across many stores and platforms world-wide.

Features at a glance:

• Anonymous. Instant on-boarding without a phone number, e-mail or other private data.

• Flexible. Supports multiple chat profiles and is easy to setup on multiple devices.

• Extensible. Add tools like shopping lists, calendars or gaming apps to any chat.

• Reliable. Works under bad and adversarial network conditions.

• Secure. Audited End-to-End encryption safe against network and server attacks.

• Sovereign. Can be run with your own e-mail address or server.

• FOSS. Fully Open Source/Free Software, built on Internet Standards.

Ratings and reviews

Would be nice to have the option to customize/change colors of receive/sent messages. So far, acquainting myself with the app. Another thing that would be helpful is to be able to short press (versus long press) on either an avatar or chat message within the main screen list and delete chats that way. Also, swipe left/right on a chat message to either call that contact; delete, mark as read (or unread) a message. Hopefully these features or at least a few of them can be implemented??

This app is clean,easy to use,the voice notes are very clear,high picture quality,private oriented and surprisingly it does even work with as low as 2g networks incredible!,i just really love it.... The only thing missing is i can't know if the message have been delivered until its read,secondly there are no stickers and lastly lack of customisation.... All in all it's a great app, highly recommended.

📧🛡️💬 Delta Chat is like email in a superhero costume 🦸‍♂️—uses your existing inbox, but chats like a messenger 📲. I like how it skips central servers 🗑️, encrypts everything 🔐, and still feels snappy ⚡. It’s perfect for privacy lovers 🕶️ who want control without the setup drama 🎭. No account creation, no metadata leaks, just pure decentralized messaging magic ✨📡🧠. Great for rebels, nerds, and anyone who wants to turn email into a chat app 💥📨🧬.

What’s new

★ target Android 15
★ improve readability of info messages in dark mode
★ fix Direct Share shortcuts
★ add experimental built-in calls
★ fix some small bugs