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.
From PAKA:
The K's Kids Parents' Support Center provides comprehensive after-sales support to parents who have purchased K's Kids products. It provides guidelines, based on children's age and developmental stages, on how kids can make use of the toy to have fun and learn at the same time. This app also includes online activities that are designed to reinforce what kids are learning from the toys.