This week the folks at Google have launched a true competitor to Apple's FaceTime and iMessage for iPhone.
It's made by the people who developed WebRTC and is built with QUIC.
This video calling app is reliable - so says Google.
This app, they suggest, is based on your phone number and has a connection that fades to lower quality only when your internet bandwidth is low - simple and smooth.
It allows the person being called to see live video of the person doing the calling before they answer.
UPDATE: Google suggests that both Duo and Allo will be launched "This Summer."