IQ Test: The Intelligence Quiz is a free brain booster game available on iPhone. This game is scientifically developed by students of the University of Rostock in Germany and is completely in English. The game consists of various tasks that focus on different aspects of intelligence such as perceptive reasoning, processing speed, working memory, speech understanding, number understanding, and logical thinking.

The IQ Test has around 100 tasks and is free to play. The game also includes an exercise mode where you can play all quiz tasks with solutions and explanations again. Moreover, you can compare your IQ test result with your friends. This brain booster game is designed to help improve your brain performance and provide a fun way to train your brain.

In addition to IQ tests, this app also includes daily riddles and exercises to increase your brain power. However, the app offers a Pro subscription that provides additional IQ Test functions such as further tests, numerous exercises, and much more. The subscription is valid for 1 month and will be automatically extended for this period if you do not cancel 24 hours before the end of the period.