The "IQ Test" app is a quiz and puzzle game designed to test users' mental abilities. The game includes a wide range of questions and puzzles from various fields, such as mathematics, science, history, geography, English language, and more. It also includes puzzle questions, logical questions, practical questions, physics questions, and more.

The app includes several levels of difficulty, where the difficulty of the questions and puzzles increases as the user progresses through the levels. Users can choose the category they want to test their mental abilities in, including mathematics, science, history, geography, English language, and many other areas.

The game features an easy-to-use and intuitive user interface, with an attractive design suitable for all types of smartphones. Users can customize their experience in the game by choosing the colors and layouts they prefer.

Performance evaluation in the app is done by calculating users' scores, which determine their mental, analytical, and creative abilities. The app also includes comprehensive performance results and comparison with other users.