First App.
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CHAPTER 10Lesson 32 of 36

Prepare your listing and screenshots

Your App Store page should explain what the app really does. Use pictures of your own working app and words your future users will understand.

On your Mac8 min read & do
By the end of this lesson

Prepare an accurate listing, an app icon and the required screenshots.

Writing, choosing artwork and capturing screenshots may take longer than reading this lesson.

Let’s do this

  1. 1
    On your Mac

    Write a clear description

    In App Store Connect, open your app and its iOS version. Enter the subtitle, description, keywords and support address as requested. Say who the app helps, its main job and useful features. Avoid claims or features that are not in this build.

  2. 2
    On your Mac

    Check the icon and categories

    Ask Codex to check the app icon asset in Xcode, including the required App Store artwork. Choose an accurate primary category under App Information. Check that you own or have permission to use all names, artwork and content.

  3. 3
    In Xcode

    Capture the real app

    Run the release version in an appropriate iPhone simulator with useful sample content. Use the simulator’s screenshot command or Xcode’s device capture tools. Keep private names, addresses and messages out of the pictures.

  4. 4
    On your Mac

    Upload the required sizes

    Open the screenshot slots in the iOS version page. Follow the sizes Apple currently requests for your supported devices. Upload clear screenshots that show the main journey. Check iPad requirements if your target supports iPad. Do not stretch images or use imaginary screens.

    App Store screenshot sizes (opens a new tab)
Device Hub window showing an iPhone simulator running Apple’s Landmarks app in landscape.View larger
Apple’s example of an app in the simulator. The guide illustrates iOS 27; use the current stable simulator you installed, which may look different.Screenshot source (opens a new tab)

A message for Codex

Help prepare an honest App Store listing for my first iPhone app, for the people I want to help, whose main job is [describe the problem my app should solve]. Inspect the actual release features before drafting a subtitle, description and screenshot plan. Use British English. Check the icon assets and supported device families, and identify the current Apple screenshot requirements we need to meet.

Make this message fit your idea.

What you should see

Your listing describes the working app and Apple accepts the image dimensions in every required slot.

If you get stuck

Go at your own pace. There is no test to pass.

Checked 7 September 2026. Screens can change; the official guides below have the latest steps.

App Store screenshot sizesApple’s App Review guidanceApple’s App Review Guidelines