Developers are finding that Apple won’t allow PC emulators on the App Store, despite other emulators being permitted.
https://www.techradar.com/phones/no-you-cant-run-a-pc-emulator-on-your-iphone-or-ipad-apple-says
https://www.techradar.com/phones/no-you-cant-run-a-pc-emulator-on-your-iphone-or-ipad-apple-says