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 IPDS2006 Ltd.:
ColorPuzzle3D is a 3-dimensional color puzzle style game. The purpose of the game is to complete a cube-like three dimensional formation by exchanging/rotating it's sides (a little bit like the famous Rubic-cube). Each side of the formation may contain several sheets, on each sheet, there are four colors. The goal is to match all the colors on all sides. The size of the formation is adjusted by the player - from 1X1X1 to 3X3X3, the larger the size, the harder the puzzle is. Help is available through fixed sheets which can be used as a starting point. The player also able to fix sheets to evade the accidental moves.