Some of the world’s most prominent tech personalities, including Jack Dorsey or Edward Snowden, use Signal to communicate with other people. Signal can be used through a variety of devices, including (desktop) computers running on Linux, macOS, or Windows, as well as mobile phone and tablet applications (available on Android and iOS devices). As such, your account is tied to the specific number that is provided.

To sign up for the service, users simply have to provide their phone number. Users can send each other texts or audio messages, create group chats, or even send (encrypted) stickers. The product experience is similar to other messaging platforms. Signal’s codebase is stored and can be accessed via its GitHub repository. The application operates on an open-source basis, meaning anyone can contribute to its development.

Users are not being tracked across platforms and messages are end-to-end encrypted. Signal’s main selling point is its focus on encryption and privacy. Signal is a communication app that allows users to conversate with each other via text, voice message, or video calls.

Signal private messaging app