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 Cyber Physical Systems:
With a splitsecnd device (sold separately), this app keeps your family connected on the go. The app gives you easy access to these family features for every car on your account:-Real-time vehicle location-Detailed trip history for last ten trips-Parking location-Miles driven each month-Texting reports (if you invite another device to be monitored through the app)And the app icon even shows you the total number of cars currently driving on your account so that you dont call or text anyone in your family while theyre behind the wheel.