Wee Sing & Learn ABC (regularly $2.99):
https://itunes.apple.com/us/app/id502708985?mt=8
Tapikeo HD – Create with your Kids their Picture Book, Storyboard, Soundboard and Audio Flashcards ! (regularly $3.99):
Comparing:
iMultiply! (regularly .99¢):
Tickle Stones (regularly .99¢: