Signal is free and open source software, enabling anyone to verify its security by auditing the code. It's the only private messenger that uses open source, peer-reviewed cryptographic protocols to keep your messages safe.

Signal uses an advanced end to end encryption protocol that provides privacy for every message every time.

Edward Snowden uses this messenger and recommends it to everyone who is concerned about his privacy.

Allows you to "send: messages to yourself and sync to desktop so you can use Signal as a kind of encrypted Pushbullet alternative.

You can easily view all media shared in the chat without scrolling back to when it was shared.

Signal Desktop is a Chrome extension that allows you to mirror messages from your phone, including replying.

Signal supports: emoji, pictures, videos, audio, contacts, any location and GIF.

Signal can be your default SMS/MMS text messenger. Encryption is not possible when sending SMS to your contacts, however.