iTunes is a mess. It's an ancient code base (dates back to SoundJam MP in the late 90s) and is a bizarre amalgamation of cross-platform pseudo-Cocoa, Cocoa, and

iTunes is a mess. It's an ancient code base (dates back to SoundJam MP in the late 90s) and is a bizarre amalgamation of cross-platform pseudo-Cocoa, Cocoa, and webviews. It's a great example of how to not do a native app. Also, I haven't used Evernote in years but last I checked, their app isn't true native but instead some kind of web wrapper trying to look native.