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Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your chats and calls completely private.

Download Signal app for Android, iOS, iPhone, iPad, iPod Touch, or Desktop for free! Get the latest version of Signal Messenger.

signal. (noun) (n) A gesture, sound, wave, action, impulse, or indication of something to pass along information.

Signal is a messaging app with privacy at its core. It is free and easy to use, with strong end-to-end encryption that keeps your communication completely private.

State-of-the-art end-to-end encryption (powered by the open source Signal Protocol) keeps your conversations secure. We can't read your messages or listen to your calls, and no one else can either.

Signal is working on a standalone version of its desktop app and more adjustable options for Signal Desktop. Signal will roll out new measures to help prevent and detect phishing attempts. FBI was …

To use the Signal desktop app, Signal must first be installed on your phone.

Stay up-to-date with the latest Signal news, app updates, tips and features. Learn more about new Signal functionality and Signal related news and blogs.

Signal users can send private messages and make secure calls to other Signal users anywhere in the world for free over the internet. All Signal-to-Signal communication is private and end-to-end encrypted.