All Projects → ChatSecure → Chatsecure Ios

ChatSecure / Chatsecure Ios

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ChatSecure is a free and open source encrypted chat client for iOS that supports OTR and OMEMO encryption over XMPP.

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Build Status

ChatSecure is a free and open source XMPP messaging client for iOS that integrates OTR and OMEMO encrypted messaging support, and has optional integrated support for connectivity via the Tor network.

download chatsecure on the app store


Redistributing ChatSecure Code on the App Store

Even though this project is open source, this does not mean you can reuse this code when distributing closed source commercial products. Please contact us to discuss licensing options before you start building your product.

If you are an open source project, please contact us to arrange for an App Store redistribution exception. For more information about why this is required, please read this blog post from Open Whisper Systems.

Cost for End Users

Downloading the ChatSecure app is 100% free because it is important that all people around the world have unrestricted access to privacy tools. However, developing and supporting this project is hard work and costs real money. Please help support the development of this project!


If you would like to contribute/improve a translation:

  1. Visit our Transifex project page and make an account if you don't have one already.
  2. Go to the resources subsites AppStore.strings & Localizable.strings to add a new language or improve an existing translation.
  3. Open an issue on Github notifying us of your translation.


There's a more full list of OTR clients on Wikipedia. A smaller list of clients support the mobile-friendly OMEMO Encryption.


  • dino (Linux, macOS, Windows) Supports OMEMO


Build Instructions

You'll need CocoaPods installed for most of our dependencies.

$ gem install cocoapods

Download the source code and don't forget to pull down all of the submodules as well.

$ git clone
$ cd ChatSecure-iOS/
$ git submodule update --init --recursive

Now you'll need to build the dependencies.

$ bash ./Submodules/CPAProxy/scripts/
$ bash ./Submodules/OTRKit/scripts/
$ pod repo update
$ pod install

Next you'll need to create your own version of environment-specific data. Make a copy of Secrets-template.plist as Secrets.plist:

$ cp OTRResources/Secrets-template.plist OTRResources/Secrets.plist

You'll need to manually change the Team ID under Project -> Targets -> ChatSecure -> Signing. The old .xcconfig method doesn't seem to work well anymore.

Open ChatSecure.xcworkspace in Xcode and build.

Note: Don't open the .xcodeproj because we use Cocoapods now!

If you're still having trouble compiling check out the Travis-CI build status and .travis.yml file.


Thank you for your interest in contributing to ChatSecure! To avoid potential legal headaches and to allow distribution on Apple's App Store please sign our CLA (Contributors License Agreement).

  1. Sign the CLA (odt, pdf) and email it to [email protected].
  2. Fork the project and (preferably) work in a feature branch.
  3. Open a pull request on GitHub.
  4. Thank you!


Software License Agreement (GPLv3+)

Copyright (c) 2015, Chris Ballinger. All rights reserved.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <>.

If you would like to relicense this code to distribute it on the App Store, please contact me at [email protected].

Third-party Libraries

This software additionally references or incorporates the following sources of intellectual property, the license terms for which are set forth in the sources themselves:

The following dependencies are bundled with the ChatSecure, but are under terms of a separate license:

For a more complete list, check the Podfile and Cartfile.

Regenerating Acknowledgements

To regenerate the acknowledgements in use LicensePlist and copy the output to Settings.bundle.

$ brew install mono0926/license-plist/license-plist
$ license-plist --add-version-numbers --output-path ChatSecure/Settings.bundle --suppress-opening-directory


Thank you to everyone who helped this project become a reality! This project is also supported by the fine folks from The Guardian Project, OpenITP, and the Open Technology Fund.

Note that the project description data, including the texts, logos, images, and/or trademarks, for each open source project belongs to its rightful owner. If you wish to add or remove any projects, please contact us at [email protected].