When the name of app appears as Solar System under it on my iPad and I search the store for that I get nothing because its called Professor Astro Cats Solar System...so theres that conundrum You might want to think about that. Took me a half hour to figure it out, but I am older so....

Mars is not 13.5 AU from Sun, but 10 times closer

Reading is required for this app. I wish that the app would read to my child so that he could understand what is going on. This should be a feature that can be turned on and off.

I have never opened a more beautiful app as this one! Although intended for children, I have thoroughly enjoyed exploring outer space with this cat! The graphics and illustrations are beautiful and so true to Ben Newmans original book, a hard feat to pull off, yet it was! Would buy again!... If I could!

He has learned so much about space. He shares the facts he has learned.

Great app.well done but sound doesnt work on iPad.