Graphic elements to showcase your app on the Apple App Store and make it appetizing
The Apple App Store offers you the possibility to create your own app icon and app screenshots for your spp. These are necessary to present your app attractively and to draw the attention of the users in the App Store to it.
Apple has published the following guidelines for uploading these graphic elements:
PNG or JPEG format
1024 x 1024 pixels
72 dpi and RGB color space
The resolution and image size of the screenshots depend on the iPhone you choose to create the app for. The screenshots must be in JPEG or PNG format. The resolution of the screenshot is 72 dpi for the color space RGB.