The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From TAKASAKI KYODO COMPUTING CENTER Co.,LTD.:
The application is connected by Wi-Fi with Wi-Probe and monitors vehicle operating conditions.[Main Functions]1.displays Wi-Fi operating conditions2.displays CAN data with texts or graphs3.displays analog data with texts or graphs4.displays digital data with texts or graphs