signal
Signal is a cross-platform centralized encrypted instant messaging service developed by the non-profit Signal Foundation and Signal Messenger LLC. Users can send one-to-one and group messages, which can include files, voice notes, images and videos. There are no ads, no affiliate marketers, and no creepy tracking in Signal, so users can focus on sharing the moments that matter with the people who matter to them.
Year: 2022
Professor: Stephen Zhang
