When wanting not only to while away but also to do it profitably, you will not find a better mobile application than Trivia Star. This is a game that will perfectly boost your brain and make it work actively. After all, this is a wonderful quiz, in which there are about 100 levels of difficulty and more than 10,000 questions. At the same time, for each of them, you can give either your own answer or choose one from the proposed ones. Well, if you need a hint, buy it with the coins you earn.