The Apple and Disney companies have recently concluded a partnership through which they offer iDevice owners to download the Where's My water application for free from the App Store if they follow a few simple steps. First access Facebook page of the App Store, then click on the big advertising banner of the Where's My Water application, then approve the connection permission that is shown to you and finally you will see the free code. At the end of following the steps, you should reach an image like the one below and you will have the code displayed exactly as you see below.
After the code is displayed, click on the word "redeem page" next to it and you will be automatically taken to the interface for entering the code in iTunes. That code was used by me, so don't test it unnecessarily, but if you follow the steps described by me, you will also get one for free. Success!
