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 in the Application Icons section of the iOS Human Interface Guidelines on the Apple Developer website: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/MobileHIG.pdf.
The following are the app icon requirements, which also need to be in .png
format:
iTunesArtwork
—512x512 px image. The .png extension needs to be removed for this image.Icon.png
—57x57 px image. Used for the App Store and home screen on iPhone 3G/iPod Touch.[email protected]
—114x114 px image. Used for the iPhone 4/4S home screen.Icon...