The user profile is end-to-end encrypted, as well as the messages, voice, and video calls. As its identifying parameters, Signal requires a phone number for registration. The user can access the platform through the Desktop software for Windows, Mac, and Linux but must log in on a mobile application first to sign up for an account. Signal app is available for Mobile with Android and iOS versions. Its business model includes a non-tracking and non-advertising policy, and it is based in private investments, grants and donations. The company is based in California and have Signal Messenger LLC as its subsidiary. Signal is currently run by the Signal Technology Foundation, an independent and non-profit organization founded by Moxie Marlinspike from Open Whispers Systems and Brian Acton, one of WhatsApp’s co-founders. This organization started the development of the Signal Protocol merging the two applications, which led to the creation of the Signal platform, which was initially released in 2014. Those were Android applications from 2010, originally developed by a group called Open Whispers Systems, organized by Moxie Marlinspike and Stuart Anderson.

Its communication protocol is based on heavy security and end-to-end encryption, and its development comes from TextSecure and RedPhone. It can be used on mobile devices and desktops, focusing mainly on the platform’s security and its users’ privacy. Signal app is an encrypted messaging platform with over 40 million monthly active users.

excellent choice for privacy-minded individuals.

It offers end-t-to-end encryption by default.

Signal is a privacy-focused messaging application.

Signal private messenger review