Discord

Discord is a proprietary freeware VoIP application and digital distribution platform designed for video gaming communities, that specializes in text, image, video and audio communication between users in a chat channel. Discord runs on Windows, macOS, Android, iOS, Linux, and in web browsers. As of 21 July 2019, there are over 250 million unique users of the software. Video-game messaging https://en.wikipedia.org/wiki/Discord_(software) Not open-source!