A free program for Android, by App Holdings.

Brain Training is the perfect application for you to train your brain and have fun at the same time. It is designed for all ages. This brain training app has been developed with a combination of funny and entertaining game mechanics to help improve your concentration, memory, and other cognitive abilities. It has 15 different games that will help you improve your brain. 

You can choose between three modes: Easy, Medium, and Hard. You will be presented with a series of questions. You will have to answer them as quickly as possible. Your answer will be checked by the machine. If you answer correctly, you will be given another chance to answer the question. The speed of the questions will increase. The questions will become more difficult. The difficulty level will increase as you progress through the games. 

The objective of each game is to get the highest score. The score will be calculated based on the time you took to answer the questions and the number of correct answers you got. 

Each game has a timer. If you run out of time, you will lose a life. You will lose a life if you answer incorrectly. You will also lose a life if you take too much time to answer the question.