This week in apps offers potty training and the classic tale of Snow White.

Title: Once Upon a Potty Girl and Once Upon a Potty Boy

Publisher: Oceanhouse Media

Release date: May 31, 2011

Price: $2.99 each

Background: Based on the Joshua and Prodence pictures books of Alona Frankel, the Once Upon a Potty pictures books, audiobooks and videos have sold millions of copies. The apps illustrate the transition from diapers to the potty to the toilet.

Features: three reading modes (Read it Myself, Read to Me and Auto Play); two music modes; original music, artwork, picture/word association and female narration.

Title: Enchanted Tales: Snow White

Publisher: Oceanhouse Media

Release date: May 25, 2011

Price: $1.99 each

Background: The classic Disney tale of Snow White and the Seven Dwarfs

Features: Three reading modes, picture/word association, original artwork and pan and zoom functionality.