StoryBlocks aims to promote creative expression, literacy development, and social-emotional development through storytelling for children ages six to ten. In this app, children create personally generated, comic-style stories by inserting characters, setting emotions, typing dialogue, using words to insert images that customize scenes, and recording their voices to narrate their unique stories. With StoryBlocks, we can collect a corpus of children’s stories in order to build analysis tools that can document children’s narrative development over time, and support coaches in providing personalized scaffolding for children’s narratives.