Wire.

About Wire

Wire is an encrypted communication and collaboration app created by Wire Swiss. It is available for iOS, Android, Windows, macOS, Linux, and web browsers such as Firefox. Wire offers a collaboration suite featuring messenger, voice calls, video calls, conference calls, file-sharing, and external collaboration which are all end-to-end encrypted. Wire offers three options, built on its technology: Wire Pro – which offers Wire's collaboration feature for businesses, Wire Enterprise – which includes Wire Pro capabilities with added features for large-scale or regulated organizations, and Wire Red – an on-demand crisis collaboration suite. They also offer Wire Personal, a messaging app for personal use.