I feel I am not clear about quickblox video chat implementation.
With no downloads or software to install, it’s an easy to use service that adds the power of face to face meetings to all your conference calls.
Like Hangouts and Viber, you can use Imo to send text messages and stickers, but the app makes it dead simple to place a video call, giving you the option in the main contact list view.
With one tap, you can launch a video call, without even needing to open a conversation, like you need to do with the other apps.
Google's own video and messaging app is one of the most popular ways to make voice and video calls from your Android phone, and that's not just because the app usually comes pre-installed.