Hm, I never owned an iPad so I have no idea if the system is the same as the macOS. However, since the iPad is a mobile device, big or not, made to work with a touchscreen, I doubt any of the versions would work on it. The only way as far as I'm aware would be for you to download the files for the PC version (windows), or the Mac Version (MacOS) and play them there since the game is not at all compatible with touch-screen devices.
I'm sorry for the inconvenience.