23 May 2015
A fun mathematical card trick. Works perfectly every time, as long as the person who chose the card does the math correctly. I have just one problem with the app. It's a resolution issue I guess, but on the final screen the button that is below the "clear" button, is hidden by the black border at the bottom of the screen. It would really help if that button were up higher, or on the side, or somewhere more visible in all screen resolutions. I'm using a 10 in. tablet. Otherwise, I enjoy the app. It's entertaining and fun to show to family and friends.