Maybe your antivirus software is interfering? Have any files been quarantined? Is there a log.txt in the game's directory and if so, what are its contents?
it’s a lot of words haha but this is what’s in it 
There's no iOS version unfortunately, but you might be able to run the web edition on your phone. It's available on GameJolt: https://gamejolt.com/games/sisterly-lust/472298