Video call is a kind of apps that communicate you and the other with voice and video. There are many video chatting and call app such as video calling apps free video call. For tablet users, app calling whats for calling duos and group are supports that usage. As you see that video chatting, especially which support 3 people or more apps are very popular for today's users. Video chat is tentatively to be a mean of communication.

It would be better to have all of videocall apps in one place for easier access and see the statistic of usage.