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 …

For almost 30 years, Signal has been managing and expanding substance use prevention, treatment, and recovery services in northeast Colorado, metro Denver, and southeastern …

Signal is now developed by Signal Messenger LLC, a software company founded by Moxie Marlinspike and Brian Acton in 2018, which is wholly owned by a tax-exempt nonprofit …

Dec 19, 2025 · 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.

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

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.

Download Signal for Android, iOS, Linux, macOS, and Windows.

The Pentagon’s acting inspector general has announced that he will review Defense Secretary Pete Hegseth’s use of the Signal messaging app to convey plans for a military strike against …

Use our care locator to find the care you need. Signal partners with a wide range of treatment and recovery service provider agencies. Based upon your needs, we want to connect you with the …

Signal Messenger User Guide Learn how to download Signal, explore its basic features, and make the most of its privacy tools and helpful tips.