On December 16, 2010 GameCollage.com, based in Seattle, issued Three Little Pigs and the Secrets of a Popup Book for iPhone, iPod touch, and the iPad. The app, which cost $3.99, was an interactive children's book which allowed the reader to push, pull, spine, slide and explore interactive pages, and to see, in a virtual way, how the mechanism of the book would work if it were an actual paper pop-up book. The art was adapted from original illustrations by L. Leslie Brooke. The app included a "whimsical sound track with colorful sound effects." When apples fell out of the tree, they fell in the direction the iPad was tipped.
Unlike an actual popup book printed on paper, which might feature high quality paper, paper engineering, printing, and binding, the app featured "silky smooth animation running at constant 60 frames per second," and a "highly polished user interface."
In December 2013 a video ad for the app was available from YouTube at this link.