What size are iOS app home screen icons?

What size are iOS app home screen icons?

App icons designed for the iOS home screen should be the following size (in pixels):

iPhone and iPod touch Retina display: 120 x 120
iPhone and iPod touch standard resolution: 60 x 60

iPad Retina display: 152 x 152
iPad standard resolution: 76 x 76

home screen icon size
Developers creating a universal app are required to submit icons in all four resolutions, to ensure the icon displays properly on each device home screen.

iOS will automatically apply a mask to round the app icon corners when it displays on the home screen.