Nintendo loves emulation, they’ve been emulating their games for at least 15 years when they started doing it on the wii, it lets them sell you the same game over and over again on new platforms. They just don’t like it when anyone else does it because they don’t make any money off it.
iOS is pretty unintuitive. There’s lots of hidden gestures you have to memorize to get around. I missed androids back button since it always worked, whereas in iOS every app implements it differently. Is there an X in the upper right? A Close in the upper left? Do I swipe down? Swipe left? Etc. even apples built in apps are not consistent.