About Signal
Signal is a free messaging app for private text, voice and video conversations. It is run by a nonprofit and uses end-to-end encryption for messages and calls.
What it does
Signal encrypts messages and calls using the open source Signal Protocol, so the company says it cannot read or listen to them. You can send text, voice notes, photos, videos, GIFs and files. Calls go over your phone's data connection, which avoids SMS and MMS fees and works across long distances.
Key features
- End-to-end encrypted text, voice and video
- Group chats with encrypted messages
- Sends photos, videos, GIFs and files
- Encrypted stickers and custom sticker packs
- No ads, trackers or affiliate marketing
Who it's for
Signal suits people who want private conversations with friends, family and coworkers. People who need a messenger with many business or bot integrations may find it narrower in scope.
Pricing and good to know
Signal is free to download and use, and it is funded by grants and donations. It is an independent nonprofit that is not tied to large tech companies. The apps are available for Android, iPhone, Windows, Mac and Linux, and the Android code is on GitHub under AGPL-3.0.
Highlights
- End-to-end encrypted text, voice and video
- Group chats with encrypted messages
- Sends photos, videos, GIFs and files
- Encrypted stickers and custom sticker packs
- No ads, trackers or affiliate marketing
