Google has launched its video chatting app, called Duo.
It represents Googleâ€™s response to other popular video calling options, including Appleâ€™s FaceTime, Microsoftâ€™s Skype and Facebookâ€™s Messenger.
Itâ€™s not that different from the other video chatting services, except that it gives users a glimpse at whoâ€™s making the call, helping people decide whether to answer or not.
Google says itâ€™s calling the feature, â€œknock, knockâ€.
The new app, originally announced in May, is being released as a free service for phones running on Googleâ€™s Android operating system as well as Appleâ€™s iPhones.
Calls are encrypted and the video resolution changes depending on the speed of your connection.
Like FaceTime on iOS, Duo only requires a personâ€™s phone number to connect.
Many other services require both people to have account logins to use the video calling options.
Googleâ€™s been offering video calling through Hangouts since 2013, but the companyâ€™s now tailoring that service for business meetings and it wonâ€™t plug into the new video chat service.
Duo is being billed as a simpler, more reliable way to see friends and family as you talk to them.
The app is rolling out around the world over the next few days.
Itâ€™s the first of two new mobile apps that Google has planned for the next few months.
The US company is also preparing to unveil a new messaging app called AlloÂ featuring a robotic assistant that will suggest automated responses to texts.
That includes commenting on pictures sent by friends, thanks to its use of image recognition algorithms.
Google announced a conversation-based tool â€“ Google Assistant â€“ to control smartphones, smartwatches and other devices earlier this year.
It can be used to find information, play media and carry out tasks via a chat between the user and the software.
The firm also announced a voice-activated device with a built-in speaker called Google Home to deliver the tech to living rooms.
Â Credit: BBC.co.uk