Google Duo is a video calling app that was released by Google on September 20, 2016. The app is designed for smartphones, tablets, and computers, and it is available for Android and iOS. It's a standalone app and does not require a user to have a Google account.
Features
Google Duo has a lot of features that make it competitive with other video calling apps on the market. For example, it offers a feature called Knock Knock that allows users to show themselves as they are on the other line before they even pick up the call. Duo also allows users to send a quick video message before they accept a call from a contact.
Design
Google Duo has a very simple design, with a white background and a chat bubble that appears on the left side of the screen when a user accepts a call. When you answer a call, it is possible to see the person you are talking to on the screen, and it is possible to switch between the front and rear-facing cameras. There is also a button that allows you to switch from a video call to a voice call.
Usability
Google Duo is very easy to use. The UI is very simple and straightforward, and it is also very easy to switch between the front and rear-facing cameras.
Conclusion
Google Duo is a very good video calling app that offers a lot of features. The app is a standalone app that doesn't require a Google account, which makes it very good for people who aren't interested in using their Google account for video calling. Google Duo is available in the Android and iOS stores.