The "32 bit Runtime" is a misnomer. Its a difference between the modern and legacy runtime. iOS (and iPhoneOS) never supported the legacy runtime. The name com

The "32 bit Runtime" is a misnomer. Its a difference between the modern and legacy runtime. iOS (and iPhoneOS) never supported the legacy runtime. The name comes from it being the only runtime for 32 bit OSX apps. https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtVersionsPlatforms.html https://developer.apple.com/library/mac/documentation/Cocoa/...