Genius Quiz 15 is an Android trivia game developed by André Birnfeld. This free game is part of the Genius Quiz series and offers players a challenging and brain-teasing experience. With 50 unique questions, players will test their knowledge across various categories.

One of the unique aspects of Genius Quiz 15 is that sometimes the answers are not found within the given alternatives. This adds an extra layer of difficulty and requires players to think outside the box. It's a refreshing change from traditional trivia games where the correct answer is always among the options.

Genius Quiz 15 is known for its difficulty, with only 2% of players managing to finish the game. This makes it a true test of knowledge and perseverance. If you're up for a challenge and enjoy trivia games that push your limits, Genius Quiz 15 is worth a try.