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 John Contreras:
SpeedMath Lite is a great educational and fun app for kids and adults. The interactive UI brings an extra dimension of fun to the game. The arcade style point system encourages speed as well as consistency. The app is sure to improve anyone's math skills while still providing an enjoyable experience. KEY FEATURES * GameCenter integration for leaderboards/highscores* Configurable time limit * Addition, Subtraction, division and Multiplication * High scores are kept for all combination's of game play * Arcade style point system awards bonus points for consistency and speed. * Point system also docks you points if you miss or skip a question. * User interface provides a great experience with rotating questions and pulsating stars all responding to the users touches. * Review your answers after each game to see the full list of questions and answers.