Signal Private Messenger

Signal Foundation

About this app

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.


• Send texts, voice messages, photos, videos, GIFs, and files for free. Signal uses your phone’s data connection, so you avoid SMS and MMS fees.


• Call your friends with crystal-clear encrypted voice and video calls. Group calls supported for up to 40 people.


• Stay connected with group chats up to 1,000 people. Control who can post and manage group members with admin permission settings.


• Share image, text, and video Stories that disappear after 24 hours. Privacy settings keep you in charge of exactly who can see each Story.


• Signal is built for your privacy. We know nothing about you or who you’re talking to. Our open source Signal Protocol means that we can’t read your messages or listen to your calls. Neither can anyone else. No back doors, no data collection, no compromises.


• Signal is independent and not for profit; a different kind of tech from a different kind of organization. As a 501c3 nonprofit we are supported by your donations, not by advertisers or investors.


• For support, questions, or more information please visit https://support.signal.org/


To check out our source code, visit https://github.com/signalapp


Follow us on Twitter @signalapp and Instagram @signal_app

Ratings and reviews

Secure text that doesn't require an email address to sign up for a login. That's a win! The security comes first with this app, which means it is harder to do some simple things like switching phones, and impossible to do others, like using the service on multiple devices. This app is mobile first. Wish there was a mobile version of the desktop app, so multiple devices would work.

Great app, I use it daily and I am super satisfied. I am only missing a "favorite messages" function, to save important messages from a chat for easy access later. Otherwise wonderful app. Its secure and has so many features that other apps are missing or just now implementing, such as automatic messaging, message reactions and message editing!

Been using since March 2022 and it's been an easy, intuitive, safe way to communicate free of any noticable issues. As an Apple-to-Android convert a few years ago, I really appreciate having a messaging app again where I can react to specific text boxes. Phone calls have been exceptionally crisp sounding; texts are sent/received instantly (often message my partner in the next room and can hear the ding immediately). Overall I'm a fan!

What's new

★ The Linked Devices interface has a new look and lots of small improvements that make it easier to use. If you're in love with multiple devices, now your relationship status doesn't need to be "it's complicated" anymore.