Brain Trainer is a free Android educational game developed by Pham Khac Canh. The app offers a variety of challenges to improve your IQ, English language skills, and coding abilities.

The app features IQ tests, language learning exercises, and coding puzzles to help you improve in these areas. With Brain Trainer, you can challenge yourself with levels to keep improving your coding skills. You can also create your own playgrounds and levels with the map-making tool to make it unique and share it with the community.

Lessons are built-in, including puzzles for you to learn and solve. You can see your code in a 3D world that runs beautifully, and the code’s effects will be introduced immediately. Lessons can also be reviewed for further learning.

Overall, Brain Trainer is an excellent app for those looking to improve their IQ, language skills, and coding abilities. With its user-friendly interface and diverse challenges, it's perfect for anyone who wants to challenge themselves and learn at the same time.