Count My Dokuyi Friends is a great mobile game for free, in which you will develop your logical thinking, and also have to do simple math, such as addition, subtraction, multiplication as well as division of variety of numbers
Sheep counting. The art is likely as old as mankind. We do it for all kinds of reasons, not least to help us get on with our siesta. Now you can do this useful exercise with your phone.For better visualization, better therpeutic effect!