In iOS 7, app icons for high-resolution iPhone and iPod touch are 120 x 120 pixels; for high-resolution iPad, app icons are 152 x 152 pixels. (To learn more about all icon sizes, see “Icon and Image Sizes” .)
Note that iOS 7 doesn’t apply shine or a drop shadow to the app icon. And, although iOS 7 still applies a mask that rounds the corners of an app icon, it uses a different corner radius than earlier versions of iOS.