Trivia Star is a free-to-play trivia game that offers over 60 categories, including general knowledge, sports, music, movies, TV shows, science, and more. The game starts with easy questions and gets progressively harder as you level up. The gameplay is challenging, addictive, and perfect for those looking to train their brains.

With over 10,000 trivia questions and 1000+ levels, the game is suitable for trivia addicts and quiz heads. You can choose to play offline or online, anytime and anywhere. Additionally, you can use coins to get hints when you can't figure out the answer. The game also offers daily bonus coins for free hints.

While the game is free, you can subscribe to the VIP subscription for $3.99 per week. The subscription gives you exclusive rewards, including more stars, gems, and an ad-free experience. However, please note that the prizes in this game are not exchangeable for real-world money or prizes.

Overall, Trivia Star is one of the best trivia game apps for quizzes and trivia game fans. It's easy to play, and the difficulty increases as you go, making it the perfect brain training game.