Delta Chat

Delta Chat

Decentral Private Messenger

118 ratings
60 reviews
Free

Details

  • Released
  • Updated
  • January 8, 2020
  • July 28, 2026

Features

Delta Chat screenshot #1 for iPhone
Delta Chat screenshot #2 for iPhone
Delta Chat screenshot #3 for iPhone
Delta Chat screenshot #4 for iPhone
Delta Chat screenshot #5 for iPhone
iphone
ipad
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About

This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.

Decentralized instant messaging
Private onboarding without phone number
End-to-end encryption
Multiple chat profiles
Works on multiple devices
Self-hosted option
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What's New in Delta Chat

2.57.0

July 28, 2026

- Fix relays not synced properly between recent versions from 2.56.0: - Show notifications when app is in foreground and the respective chat is not on screen - Allow voice and audio messages to continue playing in the background - Add "laughing face" to quick reaction emoji - Support LiquidGlass UI language on systems that support that These features will roll out over the coming days. Thanks for using Delta Chat!

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User reviews

На iPhone не работает динамик

Во время звонка нет возможности изменить выход звука на громкую связь. В остальном всё отлично

Safe

Perfect

Nice App!

It’s great. It’s just missing one thing to change the playback speed of voice messages.

Excellent!

Hello! The app is great! But, we waiting for Liquid Glass design! Wish good luck for your team ever! Upd. Add native Face-ID unlock, please!

Громкая связь

Отсутствует громкая связь при звонке. В андройде можно в айфоне нет.

FAQ

What is Delta Chat?

Delta Chat is a decentralized instant messenger that prioritizes privacy and security. It allows users to chat with friends, family, and groups using end-to-end encryption. It's built on open internet standards and can be run with your own email address or server for enhanced sovereignty.

How does Delta Chat ensure privacy?

Privacy is a core feature, with instant onboarding that doesn't require a phone number or other private data. It also features audited end-to-end encryption to protect your conversations from network and server attacks. Unknown users cannot message you without mutual consent.

Is Delta Chat free to use?

Yes, Delta Chat is a Free and Open Source Software (FOSS) application. It is available for free across multiple platforms and does not have any in-app purchases or advertisements.

Can I use Delta Chat on multiple devices?

Absolutely. The app is designed to be flexible and easy to set up on multiple devices. You can also manage multiple chat profiles within the application.

What are the benefits of a decentralized messenger?

Decentralized messengers like Delta Chat offer greater user control and privacy by not relying on a single central server. This can make them more resilient to censorship and server attacks. You also have the option to run your own server for maximum control.