Free, world-wide, private messaging and phone calls for iPhone.

Nora Trapp 28b3cf0075 "Bump build to" 3 days ago
.github fb3efe3647 Update 1 year ago
Pods @ 00c9c19939 56c54f8305 update SCK 3 weeks ago
Scripts 778885db9f Fix precommit, git-clang-format doesn't like spaces between extension type 3 weeks ago
SettingsBundle 2c18a75d12 Update to the new GitHub organization name 1 year ago
Signal 28b3cf0075 "Bump build to" 3 days ago
Signal.xcodeproj 1f67738413 Allow building when the path to the project contains spaces. 1 week ago
Signal.xcworkspace 7703155bb3 Enable legacy build system. 1 year ago
SignalMessaging d2cb2b6637 Fix share sheet for iPad 3 days ago
SignalServiceKit d23134fc91 Reduce cost of enumerating special messages. 3 days ago
SignalShareExtension 28b3cf0075 "Bump build to" 3 days ago
ThirdParty 781e15f173 Update RingRTC to v0.1.9. 1 month ago
fastlane 2233d4c72c Add jenkinsfile 11 months ago
.clang-format 933281f234 format objc. 3 years ago
.gitattributes 33428d45fd Supporting diffing of localizablestrings. 4 years ago
.gitignore d04ec58472 Remove more intermediates. 7 months ago
.gitmodules d997772488 use https:// url for gitmodules 1 year ago
.ruby-version 5fe26b4ba5 bump ruby version 11 months ago 77b41a83f4 Creating a new Signal account using the development app 6 months ago 65c323440b update translation location 1 year ago
Gemfile 47c2d1cf70 script to dump formatted schema 1 month ago
Gemfile.lock 47c2d1cf70 script to dump formatted schema 1 month ago
Jenkinsfile 0795fc9118 ci labels PRs with GH title 11 months ago
LICENSE 25d97a1304 Update license. 2 years ago fbfa5e6dee Update 1 year ago
Makefile 78ebb6a570 pristine submodules 6 months ago
Podfile 3db3fa9734 Respond to CR. 2 months ago
Podfile.lock 56c54f8305 update SCK 3 weeks ago 92fce516cd Revert some of the bigger README changes for now, until we can do a deeper review 6 months ago
SignalServiceKit.podspec 47c2d1cf70 script to dump formatted schema 1 month ago

Signal iOS

Signal is a free, open source, messaging app for simple private communication with friends.

Available on the App Store

Also available on Android and Desktop.


For troubleshooting and questions, please visit our support center or unofficial community forum.

Contributing Bug Reports

We use GitHub for bug tracking. Please search existing issues and create a new one if the issue is not yet tracked. For Android users, please use the Signal for Android issue tracker.

Contributing Translations

Help us translate Signal! The translation effort happens on Transifex.

Contributing Code

Instructions on how to setup your development environment and build Signal-iOS can be found in Other useful instructions for development can be found in the Development Guide wiki page. We also recommend reading the contribution guidelines.

Contributing Ideas

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

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.


Licensed under GPLv3

Copyright 2014-2019 Open Whisper Systems

Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc., registered in the U.S. and other countries.