BBB app is an Android client for BigBlueButton, an open-source web conferencing system designed for online learning. This app is developed by Hussain Sharif and is available for free download. BBB app allows users to join online classes, webinars, and meetings from their Android devices.

The app offers a user-friendly interface that is easy to navigate. Users can join meetings by entering the meeting URL and access code. BBB app supports audio and video conferencing, screen sharing, and chat functionality. The app also provides users with the option to raise their hand during the meeting, which is a useful feature for online classrooms.

Overall, BBB app is a reliable and functional Android client for BigBlueButton. It provides users with easy access to online classes and meetings, and the app's features are well-designed and intuitive to use.