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

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.

Signal is the successor of the RedPhone encrypted voice calling app and the TextSecure encrypted texting program.

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

Mar 12, 2025 · In times of uncertainty, people rightly often turn to the encrypted messaging app Signal. Whether it’s to protect sensitive conversations while attending a protest or to keep your …

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.

Use this easy checklist to get help troubleshooting no signal or "no service" errors.

Jan 5, 2023 · Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS - signalapp/Signal-Server

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 …

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