Decentralized private messenger with chat-shared tools and games.
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:
• Private. Instant on-boarding without a phone number or other private data.
• Friends & Family: Only chat with people you know. Unknown users cannot message or follow you without mutual consent.
• 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.
Licensed under GPL-3.0-or-later.
What's New in v2.53.0
Imported from the F-Droid repository index.
Version history
Jun 20, 2026 · 27.2 MB · Android API 21–36 · code 7514
Imported from the F-Droid repository index.
SHA-256 44461f638c6ea4320ca224ffcaea326b3d4e09716ed3076c6be0fec18327d7b4
Jun 20, 2026 · 26.3 MB · Android API 21–36 · code 7513
Imported from the F-Droid repository index.
SHA-256 410f553a42703f0dfa66fefc7aa07bea65179c8a6d7bad31d587c2255df4981d
Jun 20, 2026 · 26.6 MB · Android API 21–36 · code 7512
Imported from the F-Droid repository index.
SHA-256 1f44bebfd1f1d6b81e48ef4a1d0755f0e7dbb12e1c30d59e1d22ad0f31628fab
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.b44t.messenger is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2.53.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Delta Chat first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Delta Chat, and a listing is removed when the evidence for it stops holding up.
Get Delta Chat
Every source we list for com.b44t.messenger is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
44461f638c6ea4320ca224ffcaea326b3d4e09716ed3076c6be0fec18327d7b4
Signing certificate
9db6678ed74c88124b825e8f90502b76cd97c5eccc9aa92f4033027102d9aa9d
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.