Think the number between 1 to 60 then the app will tell you the number what you think...
Now one by one six(6) cards appears you have to tell that the number you think is in the card or not...
and your iphone will tell you what is the number you think
download free now
https://itunes.apple.com/us/app/magic-no.-alrqm-alshry/id552825228?ls=1&mt=8