Google launches video chat app, Duo, to compete with FaceTime, Skype and Messenger

Google has launched its video chatting app, called Duo.

It represents Google’s response to other popular video calling options, including Apple’s FaceTime, Microsoft’s Skype and Facebook’s Messenger.

It’s not that different from the other video chatting services, except that it gives users a glimpse at who’s making the call, helping people decide whether to answer or not.

Google says it’s calling the feature, “knock, knock”.