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Greyson Parrelli f92e2bae4a Bump version to 4.43.8 2 weeks ago
.github Update the issue template. 1 year ago
.tx Updated language translations. 4 months ago
apkdiff Ignore resources.arsc in 2 months ago
apntool update APN list, fix MMSC issues 4 years ago
artwork Change the app icon 2 years ago
assets Convert emoji to webp. 1 month ago
buildSrc Gradle witness - Do not hide resolution errors. 1 month ago
gradle/wrapper Gradle/Gradlew/AndroidGradlePlugin update. 4 months ago
jni 64-bit native utils. 3 months ago
libs Bring Gradle Witness into repo. 1 month ago
protobuf Add sticker support. 1 month ago
res Updated language translations. 2 weeks ago
src/org/thoughtcrime/securesms Fix incorrect EditorModel being restored. 2 weeks ago
test Convert to AndroidX. 1 month ago
website Fix tap-to-upgrade on website releases. 6 months ago
.gitattributes materialize conversation item indicators 4 years ago
.gitignore Lint. 2 months ago
AndroidManifest.xml Fix audio playback on API 28 devices. 2 weeks ago Remove reference to Pixelapse in 1 year ago Update the Android Transifex links in 10 months ago
Dockerfile Updated Gradle to 5.1 5 months ago
LICENSE Initial Project Import 7 years ago
NOTICE Initial Project Import 7 years ago Changed URL of the user forum. 9 months ago Bring the Reproducible Builds instructions and script into repo. 2 months ago
build.gradle Bump version to 4.43.8 2 weeks ago Convert to AndroidX. 1 month ago
gradlew Gradle/Gradlew/AndroidGradlePlugin update. 4 months ago
gradlew.bat Gradle/Gradlew/AndroidGradlePlugin update. 4 months ago
lint-baseline.xml Lint - baseline of errors. 1 month ago
lint.xml Lint. 2 months ago
pkcs11.config Update release config 8 months ago Giphy integration 2 years ago Fix the faulty tests in 2 years ago refactor proguard rules 4 years ago Convert vCard attachments to Shared Contacts. 1 year ago FCM improvements. 5 months ago Update to glide 4.x 1 year ago refactor proguard rules 4 years ago refactor proguard rules 4 years ago Add proguard config for klinker library 2 years ago Add splash screen for setting profiles 1 year ago Support for Signal calls. 3 years ago Join recipient preferences into thread query for faster lookup 1 year ago refactor proguard rules 4 years ago Add proguard rule for ShortcutBadger now that they use reflection. 4 years ago Migrate from SQLite and ciphertext blobs to SQLCipher + KeyStore 1 year ago refactor proguard rules 4 years ago refactor proguard rules 4 years ago Beta support for webrtc video and voice calling 2 years ago
proguard.cfg Switch RedPhone view<->service interaction to use event bus 3 years ago

Signal Android

Signal is a messaging app for simple private communication with friends.

Signal uses your phone’s data connection (WiFi/3G/4G) to communicate securely, optionally supports plain SMS/MMS to function as a unified messenger, and can also encrypt the stored messages on your phone.

Currently available on the Play store.

Get it on Google Play

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!

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:

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

Contributing Translations

Interested in helping to translate Signal? Contribute here:

Contributing Code

Instructions on how to setup your development environment and build Signal can be found in

If you’re new to the Signal codebase, we recommend going through our issues and picking out a simple bug to fix (check the “easy” label in our issues) in order to get yourself familiar. Also please have a look at the, 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 Open Whisper Systems projects or want to be part of the conversation? Get involved in the community forum.



For troubleshooting and questions, please visit our support center!


Looking for documentation? Check out the 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 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.


Copyright 2011 Whisper Systems

Copyright 2013-2017 Open Whisper Systems

Licensed under the GPLv3:

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