This week in apps features a royal princess adventure complete with toys and animals--Princess Baby lets players pick one of four characters to give the royal treatment. Also this week, Into the Snow: A Stella and Sam Adventure comes to digital platforms after becoming a bestselling children's book. Players follow Stella, Sam, and their dog Fred as they search for their toboggan. Leo the Lightning Bug focuses on building self-confidence and believing in yourself as players follow Leo's quest to make his very own light.

Title: Into the Snow: A Stella and Sam Adventure

Publisher: zinc Roe Inc.

Release date: April 27, 2011

Price: $2.99

Background: Stella and Sam and their dog Fred go outside in the snow to find their toboggan. Based on the television show and bestselling picture book series (which has been translated into fifteen languages and have sold over one million copies) by Marie-Louise Gay.

Features: Players can make pictures in the snow, decorate a snowman and discover what's hidden under the snow. Fullscreen animation, three fun and simple games, quick navigation by chapter and game, support for English and French.

Title: Princess Baby

Publisher: Random House Digital, Inc.

Release date: June 30, 2011

Price: $1.99

Background: Players are invited on a royal playdate to meet the princess, complete with toys and surprises. The app is specially designed to encourage listening comprehension, hone motor skills, and develop cognitive thinking in players.Features: Players can wave the royal wand, pet the royal cat, knock down colorful building blocks, and put Princess Baby to sleep and she'll wake up with more toys.

Title: Leo the Lightning Bug

Publisher: Oceanhouse Media, Inc.

Release date: June 30, 2011

Price: $2.99

Background: The app stresses believing in yourself and building confidence as players follow Leo as he tries to make his own light. The book won the Benjamin Franklin Award for Best Children's Book as well as an honorable mention for FoerWord Magazine's Book of the Year Award.Features: Professional narration, background audio and enlarged artwork for each scene. Individual words can be highlighted as the story is read. Features Read to Me, Read it Myself, and Auto Play. Players can find hidden sounds by tapping within the pictures, pages pan and zoom to accentuate the art.