Flowkit - Sketch library for user flows/content maps/annotations
Tales Untold - Smart stories for smart kids (and smart parents, too).
Crystal: Sketch Mirror for Android - Crystal: Sketch Mirror for Android is an application that is designed for viewing your sketch designs in real-time, navigate prototypes and download content related to the sketches for offline viewing.
Bedtime Stories - The Swiss Army Knife for storytelling
Figma Mirror - Figma Mirror is an application that covers top trending designing or sketching ideas making your teamwork in a single environment and design better products from start to finish.
Christmas Storybuilder - Generate Christmas themed storylines for kids