The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
It is a puzzle game to complete the square number Find the numbers disappeared. I will record the time to completion. There are six of 4,9,16,25,36,49 the iPhone App. There are nine types of 4,9,16,25,36,49,64,81,100 the iPad App. Numbers are moving at double-tap or swipe.