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 Unbound Software:
"Excellent app for practicing and learning math"Your 5-star reviews and ratings will keep updates coming!Cloud Math is a fun learning tool for budding math geniuses, from preschool/kindergarten through elementary. With choices of avatars, great sounds and animation, easy to control levels of difficulty and operations - practicing math has never been more fun! With animation and great sound effects, Cloud Math presents a set of problems to the player. For each of the problems, several avatars with possible answers bounce into view. The player's goal is, of course, to choose a correct answer. Difficulty level is easily controlled by a choice of operations, number ranges, number of answers to choose from, the number of problems in a set, and an option for a Fail-Safe mode.For younger players, or simply for practice, choose a Fail-Safe mode that allows the player to successfully get to the right answer, even if it takes a few tries. Choose smaller set of problems - 5 or 7 in a row. Choose fewer avatars on the screen, so it will be easier to make a correct choice.For more of a challenge - in addition to higher number ranges - turn the timer on, choose to have more problems in each set, select to present more avatars with possible answers on the screen.FEATURES:- Set your own levels of difficulty by selecting operations and number ranges- Select your Avatar - cloud, sun, balloon, soccer ball, flower- Select the number of problems in a set- Choose the number of avatars on the screen - more avatars for bigger challenge, or fewer avatars with bigger images and text- Time yourself by turning the timer on- Turn the sound effects on or off