I love the eco-friendly theme of this book and the kids love coloring the paper pages and then using the APP on the kindle. (I still need to add it to the iPad) We also put it on my iPhone5 and it works there too! The app for us has been a little glitchy, we can't figure out how to print but that might work better on the iPad. The rubber crayon is great for touch screens and the kids love it. My 8, 6, and 4, year old kids loved this coloring book and app. I think this is a great gift for any child and love that when crayons are not possible that the app is a clean alternative where the kids can still color again and again! We received this as a review item!