The Duo is an app of Google video, released at the Google i/o event 2016 and integrated with Messenger Google Allo. In addition to the application, the program calls for video was announced along with the Google Assistant, Google Home Android no similar to programs like Skype and FaceTime, the app allows you to make video calls and works even on slow connections.
The Duo go through video encryption based on mobile number. The function Knoc Knoc brings you a preview of what people are doing on the other end of the line, even before the smartphone owner take the call, i.e. it is possible to see the face of who’s calling before you even take a call.
Available for Android smartphones and iPhone (iOS), the Google Duo still has no release date, but is already in Google Play Store pre-registration. With it, anyone who wants to download the app will have to wait to download. There is still no information about a possible web or PC version. However, an unofficial APK leaked on the internet a day after the announcement by the developer.