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 Once Upon an App:
Richly illustrated classic childrens stories bring timeless tales to life for children of all ages. Early 20th-Century illustrations and simple melodies help enlarge childrens imaginations while immersing their attention in a fun, easy-to-use app that blends hi-tech with high art. ABOUT THIS STORY:A free introduction to OnceUponAnApp's nursery rhymes, featuring Humpty Dumpty. View the story with music, then help put Humpty back together again by touching the screen and shaking the device. FEATURES:High-res graphicsFull narrationMusical accompanimentShake Humpty Dumpty off the wall, then put him back together.When used on the iPad, includes a coloring book. Narrated/Vocals by Allison David. Music by Nate Lee.