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

Moving between devices (or breaking a device) or generally syncing is my pain point, but it is an inherent problem to encrypted communication and I'm very very happy with how Signal handles it so gracefully. I am so thankful for the existance of this app! In daily use it has always been stable and reliable, a true feat in this time when the bar is set so high by our ultra big companies with their seemlingly endless resources. It doesn't cover every use case, but at what it does it excels.

Keep up the great work. Great app. Just don't do what whatsapp did and we will stick around. Great app. Its come along way over the years. I'm glad I made the switch. Is it possible that when you change the group name or picture for that group that its visible within the app and if pinned on the screen? It makes it hard to differentiate groups. Also can you add a pin to top option for chats? That also would be helpful. Sending larger videos or data chunks would also be awesome. Thanks!

Great messenger. Uses Material You-esque design language, in fact one of the few apps with a better Android than iOS version. However the in-chat text spacing and font scaling is slightly off, making the chats themselves take too much space compared to the rest of the app. Smaller text option is far too small. With less empty space between bubbles and a smaller text space and/or mildly smaller text font, this app is will be one of the most beautiful non-Google Android apps available. Thumbs up!

What's new

★ Chats now open much more quickly, so any conversation about where you're meeting friends for dinner will always sort of be about fast food.