Take a challenge to your short term memory! If Dr Color is too hard to you, try Dr Number.
Dr Color is designed to train your memory and concentration for colors. It is especially helpful in improving the short-term memory.

Dr Number is designed to train your memory and concentration for number. It is especially helpful in improving the short-term memory.
To improve your memory, you need motivation and making memory training as your daily habit (5 to 10 minutes a day). Dr Number only takes a few minutes to play. The training is simple, but [...]