State-of-the-art end-to-end encryption (powered by the open source Signal Protocol) keeps your conversations secure. We can't read your messages or listen to your calls, and no one else can either.

Signal users can send private messages and make secure calls to other Signal users anywhere in the world for free over the internet. All Signal-to-Signal communication is private and end-to-end encrypted.

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!

A Signal group is built on top of the private group system technology. The Signal service has no record of your group memberships, group titles, group avatars, or group attributes.

Jan 27, 2025 · With Signal on Desktop and iPad, you can link your primary Android or iOS account with another device, letting you check and respond to messages in both places or conduct video …

Like all Signal messages, group voice and group video calls are private too. You will be prompted to grant the Camera and Microphone permissions the first time you make or receive a Signal call.

"Signal", Signal logos, and other trademarks are trademarks or registered trademarks of Signal Technology Foundation in the United States and other countries (more info here).

Signal is committed to your privacy. Signal runs on donations as a nonprofit. Donate here!

Nov 17, 2016 · The latest Signal release includes some changes to the way safety numbers work. Safety numbers allow Signal users to verify the privacy of their communication with a contact, either …

"Signal", Signal logos, and other trademarks are trademarks or registered trademarks of Signal Technology Foundation in the United States and other countries (more info here).