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.
A simple Decimal/Roman number converter that will calculate whole numbers from 1 through 3,999,999. Additionally, there is a Quiz mode that quizzes the user - available in either decimal or roman numeral mode.