Google Duo is arguably the best video calling app available now. You would've never seen a simpler video calling app than Google Duo.
I've been using the app for the past 2 months and let me tell you that it's just amazing and simple. The knock knock feature enables us to view the preview of the person who's calling us. You can even disable the same feature. One thing that I noticed is that the quality of the video increases with speed of your internet .
Overall, Friends choose this app over any other video apps available.
