Google has launched its video chatting app,called Duo, the new app, originally announced in May, isbeing released as a free service for phones running on Google's Android operating system as well as Apple's iPhones.
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".
Calls are encrypted and the video resolution changes depending on the speed of your connection.
Duo only requires a person's phone number to connect.
Many other services require both people to have account logins to use the video calling options.
Duo is being billed as a simpler, more reliable way to see friends and family as you talk to them.
Check Google Play and iTunes Store to Pre-register.