4 Conclusion: NDS4iOS Emulator for iOS 14 and iOS 15.2 How To Add Your Favourite Nintendo DS ROMs in NDS4iOS.1.3 #3: Sideload the IPA file directly to your iPhone or iPad.1.2 #2: Download NDS4iOS Emulator via IOSEmus.1.1 #1: Download NDS4iOS Emulator via iEmulators.1 NDS4iOS Emulator (Latest) – 4 Ways to Download Nintendo DS Emulator.