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Delta Chat

Name: Delta Chat
Author: deltachat

deltachat

Decentralized private messenger with chat-shared tools and games.

Communication
FOSS
Free
No ads
No tracking

Android only

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What are these stores? F-Droid, GitHub, Zapstore

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: • Private. Instant on-boarding without a phone number or other private data.

Developer: deltachat
Website: delta.chat/
Source code: github.com/deltachat/deltachat-android
Added to AppCosmos: 9 October 2026
License: GPL-3.0-or-later