AI summary
Decentralized private messenger that works over email with no phone number required. Features end-to-end encryption, audio/video calls, and extensible chat-shared tools like calendars and games. Latest update adds channel reactions, per-device relay settings, and reduced traffic usage.
Generated by AI. May contain inaccuracies.
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About this app
Decentralized private messenger with chat-shared tools and games.
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.
• Audio and video calls supported! stay close to family and friends even when traveling.
What's new
★ Add support for reactions in channels ★ Improve reactions details overview ★ Allow channel owners to mute their channel ★ Fix: Mic will stay active during a call when screen is off on Android 14+ ★ Fix: allow to pick image without requiring storage permission ★ Fix: avoid overflow with big numbers in badge counters ★ Fix: make video players truly fullscreen ★ Fix: avoid ending search mode when a new message arrive to the chat ★ Fix: Recording now request and respect audio focus ★ Fix: If one relay is connected, assume overall connectivity ★ Show phased out relays in connectivity view as such ★ Sending relay is a per-device setting now ★ Collect call information from all relays ★ Reduce traffic (no unnecessary keys attached to group chats, improve read receipts) ★ Send messages to up to 5 relays ★ Update to core 2.58.0
About this version
- Version
- 2.58.0 (755)
- Size
- 66.74 MB
- Requires Android
- 5.0
- Target SDK
- 21
- Architecture
- x86_64, arm64-v8a, armeabi-v7a, x86
- Downloads
- 10
- Updated
- Aug 17, 2026
- Package
- chat.delta
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