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.
How to use Find The Difference Freeeasy and simple to use you have two same pictures but you need to find the difference of the two the same picture you have 30 second timer counting down you can ask for help 3 times