Simple Video Calling
(Archived News - August 2016)
In 2016, Google launched Duo, a 1-to-1 video calling app designed to compete with FaceTime and Skype. It was praised for its simplicity and "Knock Knock" feature, which showed a live video preview of the caller before you answered.
Legacy
Google Duo has since been merged into Google Meet, unifying Google's video calling platforms.