What's This App 2 is the sequel to the very popular trivia game for the iPad and iPhone. This app is quite unlike most other trivia games available today in that it is not just a matter of how much you know about different subjects but much more than that. You have to look at the clues, which could be anything from the audio playing to the picture or even the letters on the screen. Every level provides a unique and thought provoking challenge which you have to overcome. The trick to this game is to learn not to think about it like a normal riddle or trivia question.