This is something I haven’t seen before, but the Crayola Color Alive Enchanted Forest Action Coloring Pages are $1.97 as part of the add-on program (They are regularly $7.99).  These look pretty neat!  Remember prices will change.

Crayola Color Alive Enchanted Forest combines traditional coloring with virtual interaction. Children can color the 16 action coloring pages, then scan them and watch as creatures come to life and interact on their devices in with the Color Alive app. Each coloring page character provides a unique virtual experience. Kids will love watching fairies jump and move off the page. Once they’ve completed all 16 included character pages, kids can continue the fun by downloading additional action coloring pages from the app.

Thanks, PPP!