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

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 corporation called the …

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

Update your package database and install Signal: sudo apt update &&sudo apt install signal-desktop. 2013-2025 Signal, a 501c3 nonprofit.

5 days ago · 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.

2 days ago · Signal is often considered the gold standard in private and secure messaging. But is Signal safe? How much of its reputation is justified?

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 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.

Dec 5, 2025 · The Pentagon’s latest report makes one thing clear: Signal protects conversations, but it was never designed to safeguard U.S. war plans — and using it that way carried real risk for …

Jun 20, 2025 · Learn what the Signal app is used for, how secure it is, who owns the private app, and best practices for safe messaging.