1) A large version of your app icon that will be used on the App Store. It must be at least 72 DPI, in the RGB color space, and 1024 x 1024 pixels (it cannot be scaled up). The file type must be .jpeg, .jpg, .tif, .tiff, or .png. It must be flat artwork without rounded corners.

 2)Screenshots for 3.5-inch iPhone and iPod touch Retina display must be 960×640, 960×600, 640×960 or 640×920 pixels, at least 72 DPI, in the RGB color space, and in the JPG or PNG format.

3)Screenshots for 4-inch iPhone 5 and iPod touch (5th generation) Retina display must be 1136×640, 1136×600, 640×1136 or 640×1096 pixels, at least 72 DPI, in the RGB color space, and in the JPG or PNG format.

4)iPad Screenshots must be .jpeg, .jpg, .tif, .tiff, or .png file that is 1024×768, 1024×748, 768×1024, 768×1004, 2048×1536, 2048×1496, 1536×2048 or 1536×2008 pixels, at least 72 DPI, and in the RGB color space.

5)(optional)Routing app coverage files are .geojson files which specify the geographic regions supported by your app. The file can have only one MultiPolygon element. MultiPolygon elements consist of at least one Polygon. Polygons contain at least four coordinate points. Polygon start and end coordinate points must be the same.

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