Tech giant, Google has reached another height by launching a video caller app for smartphones. The app being their latestest technology was first announced in May 2016 but was finally unveiled on the 15th of August.

The app, dubbed Duo, represents Google's response to other popular video calling options, including Apple's FaceTime, Microsoft's Skype and Facebook's Messenger app. Duo isn't much different from the other video chatting services, except that it gives a glimpse at who is making the call, helping the recipient decide whether to answer. Google calls this feature, "Knock, knock."

The new app, announced in May, is being released as a free service for phones running on Google's Android operating system as well as Apple's iPhones. Like FaceTime for iPhones, Duo only requires a person's phone number to connect. Many other services require both participants to have account logins to use their video calling options.

http://tropage.com/google-launches-video-calling-app-duo-android-ios/