just install troll store, IPA's are a thing
Viewing post in Friday Night Fappin JOI comments
If you go to the troll store website, you can download it with no jailbreaking. Essentially, what Troll Store does is mess with Apple's code and make your device think that you're installing apps through the AppStore but you're actually downloading from an external source (AppDB). Installing IPA files on an IOS device should be easy to port as long as the engine they are using (assuming Unity) supports it.