A lot of adult games will trigger an error like "this app is not from the app store and could be harmful" or "this app cannot be opened," but there are pretty simple workarounds to those issues that you could post if you were to release a mac version.
I'm asking because I have a Mac, and I would like to be able to buy the uncensored version, but as it is I can only play the browser version because I can't get the Windows version to work.
Alternatively, what about releasing an uncensored browser version behind a paywall for people who want to pay but can't use the downloadable game?