Comment by kccqzy

It might be an unpopular opinion but I still have apps from iOS 4 that works perfectly fine on my iPhone running iOS 9. To me this is a testament of the great engineering that allows this iOS 4 app to be binary compatible with iOS 9. Sure the apps won't use the latest APIs and they look a little blurry (because screens have gotten larger) but they still work fine and I don't want apple to kill them, making a cloud backup restore impossible.