This game has the most random questions like "what movie did Tom Hanks win an award for?" It is not actually a game for "smart" people, its just a game. If youre hoping to learn from this, then be prepare to gain a lot of useless knowledge along with the few history and geography questions it has. You cant even choose the category to play trivia (at least not in the free version, and who is actually going to spend money for an app)? And when you can choose the category, it repeats the same questions that you missed and thats all you can do in said category.
EmilyTheStange about Trivia: Knowledge Trainer Quiz, v1.7