Storysign app,

https://www.aardman.com/interactive/storysign/

StorySign is an AR app created to help deaf children overcome this difficulty and open up the world of books to them. Children scan the pages of physical story books with their device to reveal animations of our character, Star, signing the relevant passage of the story with the correlating word highlighting on the page as she signs.

StorySign helps to open the world of books to deaf children and develop literacy skills by translating children’s books into sign language through an animated character, Star.