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

Michael Kirk db3a06f8c1 "Bump build to" 1 day ago
.github fb3efe3647 Update 1 year ago
Pods @ 4f835094af e7591df991 Sync message request response 6 days ago
Scripts 8f00330ce8 Merge branch 'release/3.3.1' into release/3.4.0 3 weeks ago
SettingsBundle 2c18a75d12 Update to the new GitHub organization name 2 years ago
Signal db3a06f8c1 "Bump build to" 1 day ago
Signal.xcodeproj 73937c16fe Contact support flow after missed PIN 1 week ago
Signal.xcworkspace cce628a069 fixup! Merge branch 'mkirk/pdf-share' 1 month ago
SignalMessaging 32ec7fa116 fix missing profile avatar 1 day ago
SignalServiceKit 32ec7fa116 fix missing profile avatar 1 day ago
SignalShareExtension db3a06f8c1 "Bump build to" 1 day ago
ThirdParty 923a8ab39c RingRTC v0.3.3 3 weeks ago
fastlane 2233d4c72c Add jenkinsfile 1 year ago
.clang-format 933281f234 format objc. 3 years ago
.gitattributes 33428d45fd Supporting diffing of localizablestrings. 4 years ago
.gitignore d04ec58472 Remove more intermediates. 10 months ago
.gitmodules 469e169962 Convert to just using CocoaPods for dependencies 1 month ago
.ruby-version 5fe26b4ba5 bump ruby version 1 year ago 1a183e97ad PR Feedback 1 month ago 65c323440b update translation location 1 year ago
Gemfile 77b06541c0 Fix readlink from cocoapods-binary 1 month ago
Gemfile.lock 77b06541c0 Fix readlink from cocoapods-binary 1 month ago
Jenkinsfile 0795fc9118 ci labels PRs with GH title 1 year ago
LICENSE 25d97a1304 Update license. 2 years ago 1a183e97ad PR Feedback 1 month ago
Makefile 52c83ed1dd add pristine_dependencies task 1 month ago
Podfile d73210b17f update pods 1 week ago
Podfile.lock e518134ebc Update pods 6 days ago 92fce516cd Revert some of the bigger README changes for now, until we can do a deeper review 8 months ago
SignalServiceKit.podspec b7411bcb40 Implement final KBS master key encryption 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.