A free app for Android, by AlcamaSoft.

Like the human body that needs regular exercise to stay strong, the human mind also yearns to be challenged from time to time. This fun android game can give your brain the right exercise that it needs.

Instead of solving complex mathematical equations or answering trivia and pop quizzes, this game will test how good your memory is. 

How it works:

In every round you will see multiple tiles, each having their own photo. Each photo has its duplicate and everything is scattered all over the board. What you need to do is do your best to memorize every tile, their placement and their image. 

Then, once the tiles are overturned, all you will see are blank tiles. You will have to click each one to see the image behind it and find its duplicate.