Skred is a French messaging app built for privacy. It enables fully anonymous text, voice and video communication without any phone number or email. All conversations are end-to-end encrypted and direct device-to-device (peer-to-peer), with no intermediate servers storing messages. Users can create multiple identities and private “spaces” for different groups of contacts. The app was originally a project of the French Skyrock Group (a media company) to support free expression, and it uses WebRTC technology for secure device-to-device communication. Its site notes that Skred has over 21 million users worldwide.