Once your game is finally debugged and completed, what's next? Assuming you're already registered in the iOS Developer Program, there are some guidelines that have to be followed before an application can be submitted to the App Store.
There are various image sizes and naming conventions required for your app icon, depending on which iOS devices your application is developed for. You can find the latest information under the App Icon subsection of the Icon and Image Design section of the iOS Human Interface Guidelines, on the Apple Developer website at https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/AppIcons.html#//apple_ref/doc/uid/TP40006556-CH19-SW1.
The following are the app icon requirements, which also need to be in a noninterlaced .png format:
iTunesArtwork@2x: This is a 1024 x 1024 px image. The.pngextension needs to be removed for this image.[email protected]: This is a 120 x 120 px image...