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 Edmentum, Inc.:
Plato Courseware Spanish 3B GamesPlato students subscribing to a World Languages course can now access a suite of mobile games designed to supplement course content. These games are a fun way to practice the target language whenever you want, wherever you are. To access these games, youll need to have a Plato login id. Simply log in to your Plato account, and you're all set to play! Note: Mobile applications are currently available only to users of the Plato Learning Environment Learning Management System.