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 Finding Fosbury:
The Mighty Minute education apps solidify math fundamentals helping students build up to the next level.The Suite contains the Addition, Subtraction, and Multiplication disciplines allowing the student to switch back and forth with ease.The student completes 30 randomly generated addition, subtraction, or multiplication problems, sees the total time, then evaluates the incorrect and correct answers. The goal is to correctly complete all questions in 60 seconds or less.Once the student makes the Mighty Minute, fireworks celebrate the students achievement. From there the student progresses to the next level of difficulty.