Red Ball is a 'game' where, in exchange for watching ads, you win points. You can then use these points to tap on a red ball at the center of the screen and watch how it moves.
Obviously Red Ball isn't really any fun at all, even though it tries to find its usefulness in other areas: for example, if you suffer from stress or anxiety, this app might help you turn off your head for a little bit. However, it seems like the main point of the app is for users to watch ads and earn money for the app.
Red Ball is an almost useless app that isn't any fun, but with a little imagination, you might be able to find some kind of use for it.
