ToonTastic, a product of Luanchpad Toys Company, is one of the famous storytelling makers apps. It allows elementary students to create animated movies based on Story Arc structure. In ToonTastic, kids can choose their favorite characters, or draw their own ones, color, record their voices, choose background music according to theme and share their videos with friends and family.
In 2003, Google requested Launchpad Toys company and its now part of it.
This is the blog url: http://blogs.ubc.ca/toontastic
Enjoy!