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

Help us translate Signal! The translation effort happens on Transifex

Instructions on how to setup your development environment and build Signal-iOS can be found in BUILDING.md. Other useful instructions for development can be found in the Development Guide wiki page

We recommend going through our issues and picking out something with the help wanted label.

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.

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.

Check out the SignalServiceKit README for details about using SignalServiceKit in your own app.

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.

Copyright 2014-2017 Open Whisper Systems

Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-3.0.html