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PCMag UK

Signal Private Messenger (for Android)

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Signal is the easiest way to send encrypted messages on Android. It's a complete replacement for your existing SMS app letting you send unencrypted messages to non-Signal users, and even make encrypted VoIP calls. It's the best secure messaging app we've tested.

A Familiar Face

Signal has a great design, and looks like any other modern Android app. It even uses flourishes of material design.

Mixed Messages

With Signal, you can send unsecured text messages to your friends who don't use Signal and encrypted Signal messages to those that do. It's easy!

Attached to You

Signal supports attachments, although there are size restrictions.

Speaking Securely

In addition to messages, Signal lets you place secure, encrypted VoIP calls to other Signal users.

Secure Groups

Group messaging is a snap in Signal, which includes all the controls you'd expect from a modern messaging app.

No Sign Up

Using Signal doesn't require creating an account or a password. The app authenticates your phone with a special text message and you're ready to go.