The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From The Code Zone:
The web and social-network version of this game has been played millions of times, and now the best-ever version of this devious circuit-building puzzle game is available to take with you anywhere!The rules are quite simple, "connect all the wires, and light up the lights". And the wires are all in the right place. They just need to be rotated a bit so that everything is powered up. Unfortunately, that is not as easy as it sounds. Every puzzle has a solution, but some are not very obvious. Features "undo", "restart" and "give up" to help you solve the puzzles.Once you give it a try, you will be hooked. Have fun!