I'm assuming you mean App (Application) Store as opposed to Apple Store, so I'm figuring you must have purchased the Kooky app from the App Store. The Kooky app on the App Store will only play on an iPad, correct. Actually, no apps purchased from the App Store will run on Mac computers, as they are only for mobile devices that use iOS. (Well, *technically* there are ways to run iOS apps on your Mac using simulator software, but I don't believe that's what you're wanting to do.) Anyway, the Kooky app has the movie, a behind-the-scenes movie, an illustrated book, drawings and a simple mini game, and there is no equivalent app for OS X. However...
For your Mac, you can purchase the movie Kooky (which is titled Kuky se vrací) from iTunes:
https://itunes.apple.com/us/movie/kuky-se-vraci/id1041375731As for the illustrated book, you can purchase and view that on your Mac using iBooks, though a heads-up that iBooks requires that your Mac is running at least OS X 10.10 Yosemite or later. Here is the link to purchase the book on iBooks:
https://itunes.apple.com/us/book/kooky/id479878036?mt=11Hope that helps you out. Let me know if you have any more questions. :)
Edit: Note that it seems the app is no longer available for purchase on the App Store...at least not in the U.S. store.
