Required Metadata:

• App Store Name -  The App Store name is used only in the app store, not on a user's device home screen. Tip: all of the words in the app store name count as keywords when user's search for your app. 30 character limit.
• Description - This is a description of your app that will be displayed in the app store. Keep your catchiest content in the first few lines to make sure it is visible to all visitors. 4000 character limit.
• Primary Category - The primary category help prospective downloaders find your app in the App Store. Please select a preset category.
• Keywords - These are words and phrases used for App Store SEO. You can leave your App Name out, Apple already indexes this separately for search purposes. Please separate keywords using commas. 96 character limit.
• Copyright - This should be the organization that owns the majority of content contained in the app. 199 character limit.
• Content Rating - Please select All Ages or 17+ . If you have selected 17+, you will need to select all which apply to your content:
  
  • Cartoon Violence
  • Profanity/Crude Humor
  • Medical/Treatment Info
  • Nudity/Sexual Content
  • Realistic Violence
  • Mature/Suggestive Layout
  • Alcohol, Tobacco, Drugs
  • Graphic Sexual/Nudity
  • Graphic Realistic Violence
  • Horror/Fear Layout
  • Simulated Gambling
  • Gambling and Contests

Optional Metadata:

• Secondary Category - The secondary category help prospective downloaders find your app in the App Store. Please select a preset category.
• Developers Website - Your website to be passed on to the app stores. 
• Release Notes - Use this text to describe whats new in your app update. You can always use the default "This release includes bug fixes and general stability improvements" by leaving it blank.

Required Assets

• Mobile App Icon - An app icon is a unique image added for every mobile application, and the first icon users see when they find an app on the Apple App Store.
  
  Requirements:
  • 1024 x 1024 px
  • Square with corners
  • No transparency
  • 72 dpi
  • PNG

Screenshots

Screenshots are used in the App Store to give your end users a preview of your app's UI. Screenshots are not required for test builds, but will be required at the time of submission. These screenshots should be taken using your test builds to accurately represent your app and all of your app's features. Please note that screenshots are not required until the time of submission for approval. For more details on screenshots, view Apple's Guidelines here.

• iPhone XS Max, iPhone XR Screenshots 
  Requirements:
  
  • At least 1 required; 5 maximum
  • Allowed Sizes:
    • 1242 x 2688 px
    • 2688 x 1242 px
  • 72 dpi
  • PNG
• iPhone 8 Plus Screenshots
  Requirements:
  
  • At least 1 required; 5 maximum
  • Allowed Sizes:
    • 2208 x 1242 px
    • 1242 x 2208 px
  • 72 dpi
  • PNG
• iPad Pro Screenshots
  Requirements
  • At least 1 required; 5 maximum
  • Allowed Sizes:
    • 2048 x 2732 px
    • 2732 x 2048 px
  • 72 dpi
  • PNG

Optional Assets

App Preview Videos

• iPhone XS Max, iPhone XR
  Requirements:
  • Allowed Sizes:
    • 886 x 1920 px
    • 1920 x 886 px
  • 15-30 seconds long
  • Upload up to three videos
  • Use actual footage captured from device
  • Mov, m4v (H.264 only), mp4 (H.264 only)
• iPhone 6s Plus, iPhone 7 Plus, iPhone 8 Plus
  Requirements:
  • Allowed Sizes:
    • 1080 x 1920 px
    • 1920 x 1080 px
  • 15-30 seconds long
  • Upload up to three videos
  • Use actual footage captured from device
  • Mov, m4v (H.264 only), mp4 (H.264 only)
• iPad Pro
  Requirements:
  
  • Allowed Sizes:
    • 1200 x 1600 px
    • 1600 x 1200 px
  • 15-30 seconds long
  • Upload up to three videos
  • Use actual footage captured from device
  • Mov, m4v (H.264 only), mp4 (H.264 only)