Google releases Duo: a simple 1:1 mobile video calling appTo get started, all you need is your phone number and you’ll be able to reach people in your phone’s contacts list. No separate account is required, so you can sign up in just a few steps. From there, you can instantly begin a video call with a single tap.
It should be fast and reliable:Call quality adjusts to changing network conditions to keep you connected — when bandwidth is limited, Duo will gracefully reduce the resolution to keep the call going smoothly. For video calls on the go, Duo will switch between Wi-Fi and cellular data automatically without dropping your call.
And all Duo calls are end-to-end encrypted.
Note that this does not replace Hangouts video calls:
> there is no desktop version
> there is no group calling
> there is no screen-sharing or other advanced features
Get the app for Android or iOS, rolling out over the next few days.http://duo.google.com/
More information on the official Google blog:googleblog.blogspot.com/2016/08/meet-google-duo-simple-1-to-1-video.html