Students and faculty at Gallaudet University and Swarthmore College collaborate on making bilingual-bimodal ebooks for children and adults to share, whether they be deaf or hearing. The goal is simply to delight both child and adult. All are free.
https://riseebooks.wixsite.com/access/copy-of-about-rise
Some examples
https://itunes.apple.com/us/book/humpty-dumpty/id812283884?mt=11
https://itunes.apple.com/us/book/jemima-puddle-duck/id812317758?mt=11
https://itunes.apple.com/us/book/the-night-before-christmas/id779834011?mt
https://itunes.apple.com/us/book/rocky-the-cat-who-barks/id812224755?mt=11