Do you want to have a Beat Box on your iPad? You can try Beat Hop, a free app that is developed by Advance Innovations. It is a simple app for time wasting by sitting above Cat Piano. The app will start with a big rectangle on your screen with nine glowing music notes in the bottom of the screen. When you drag the note into the rectangle, a hoodie guy with baseball cap will start the beat boxing.
There are six beat boxers in this app which you can mix and match in any way you want. Use the various beats available in the app. The more you add the note, the better it sounds. If six beat boxers seem to much for you, you can remove it by tapping him. He will immediately disappear from the screen and his note will drop back into the bottom of the screen.
Actually, there is nothing particularly stand out with this app. However, it is a free app, so you won't think that you waste something if you hate it. You can even waste your time by relaxing and mix the beat box sounds for at least half an hour.