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Signal-Android

From public sources

Signal Android is an open-source, end-to-end encrypted messaging app for Android that lets you send private messages and HD voice and video calls.

ApplicationCategory: Mobile Apps · Messaging & email · Security & passwordsOpen sourcedata checked Oct 15, 2026
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Overview

Many messaging apps leave conversations readable by the service provider or expose metadata about who talks to whom. Signal Android addresses this with a private messenger for Android that uses your phone's data connection over WiFi, 4G or 5G to send high-fidelity messages and place HD voice and video calls. Privacy-preserving technology is always enabled, so users do not need to configure anything to keep their conversations secure. The app is aimed at anyone who wants free, instant communication with friends, family or colleagues anywhere in the world without giving up control of their data. It is distributed through the Google Play Store and signal.org, and the same messenger is also available for iOS and desktop. Bug reports, beta testing and translation work are coordinated through GitHub and the Signal community forum. Signal Android is licensed under the GNU AGPLv3, so its source code is publicly available for review, modification and contribution. Developers who want to inspect how the client works or propose changes can start with the contributing guide and the project wiki.
  • android

Installation

Commands are shown, never run by the marketplace. Check them against the official documentation.

Compatibility

Unknown means no evidence was found — not that the product is incompatible.
PlatformStatusArchitectureEvidenceConfidence
AndroidCompatibleuniversalofficial build in release v8.33.2: Signal-Android-github-prod-universal-release-8.33.2.apk0.70
iOSUnknown———

Releases

checked Oct 29, 2026
v8.33.2LatestOct 26, 2026Official source ↗

Files in 8.33.2

The marketplace does not host these files: downloads go to the official source. Files have not been scanned by us.
FilePlatformSizeSHA-256Download from the official source
Signal-Android-github-prod-universal-release-8.33.2.apkandroid · universal · apk109.7 MB336d879915d0…Official source ↗

Release history

Quality profile

algorithm quality-v1.0 · assessed Oct 15, 2026
Quality Score89
Risk Score0
Confidence 1.00
Quality Score and Risk Score are different measures. A high score does not guarantee safety.

Score components

Maintenance · 2020
last activity 1 days ago
Documentation · 1515
README 4007 chars, description present
Ready to use · 156
install instructions: no; releases: yes
Metadata · 108
3/4 of description, homepage, license, topics
Releases · 1010
10 release(s), latest 1 days ago
Category confidence · 1010
classifier confidence 1
Adoption · 1010
29472 stars (log-dampened, 10k = max)
License clarity · 55
SPDX AGPL-3.0
Community · 55
issues enabled, 6911 forks

License

AGPL-3.0
Known licensefrom the repository host

This is the catalog policy status, not legal advice.

Sources

github.com/signalapp/Signal-AndroidPrimary★ 29,472 starslast activity Oct 14, 2026Primary repository · Confidence 1.00

Reviews

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README

From signalapp/Signal-Android · license AGPL-3.0 · fetched Oct 29, 2026

Signal Android

Signal is a simple, powerful, and secure messenger that uses your phone's data connection (WiFi/4G/5G) to communicate securely.

Millions of people use Signal every day for free and instantaneous communication anywhere in the world. Send and receive high-fidelity messages, participate in HD voice/video calls, and explore a growing set of new features that help you stay connected.

Signal’s advanced privacy-preserving technology is always enabled, so you can focus on sharing the moments that matter with the people who matter to you.

Currently available on the Play Store and signal.org.

Also available on iOS and Desktop.

Contributing Bug Reports

We use GitHub for bug tracking. Please search the existing issues for your bug and create a new one if the issue is not yet tracked!

https://github.com/signalapp/Signal-Android/issues

Joining the Beta

Want to live life on the bleeding edge and help out with testing?

You can subscribe to Signal Android Beta releases here: https://play.google.com/apps/testing/org.thoughtcrime.securesms

If you're interested in a life of peace and tranquility, stick with the standard releases.

Contributing Translations

Interested in helping translate Signal? Contribute here:

https://community.signalusers.org/c/translation-feedback/

Contributing Code

If you're new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix in order to get yourself familiar. Also please have a look at the CONTRIBUTING.md, that might answer some of your questions.

For larger changes and feature ideas, we ask that you propose it on the unofficial Community Forum for a high-level discussion with the wider community before implementation.

Contributing Ideas

Have something you want to say about Signal projects or want to be part of the conversation? Get involved in the community forum.

Help

Support

For troubleshooting and questions, please visit our support center!

https://support.signal.org/

Documentation

Looking for documentation? Check out the wiki!

https://github.com/signalapp/Signal-Android/wiki

Legal things

Cryptography Notice

This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See http://www.wassenaar.org/ for more information.

The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.

License

Copyright 2013 Signal Messenger, LLC

Licensed under the GNU AGPLv3: https://www.gnu.org/licenses/agpl-3.0.html

Google Play and the Google Play logo are trademarks of Google LLC.

Open the repository ↗