App Store Screenshot Sizes & Dimension Requirements (2026 Guide)

Preparing screenshots for App Store Connect can feel like chasing a moving target. Every few hardware generations, Apple introduces new screen resolutions, display cutouts, and corner radiuses. Uploading an image that is off by even a single pixel results in an immediate upload error, halting your release.

This guide details the exact pixel dimensions, aspect ratios, and format requirements verified from Apple's official App Store Connect specifications for 2026. Whether you are shipping a new iOS utility, an iPadOS productivity app, or updating an existing listing, use this reference to prepare compliant screenshots on your first upload.

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Quick Reference Cheat Sheet (The 2026 Core Sizes)

Apple organizes App Store screenshots by display family. Below are the verified pixel specifications for all current and supported Apple device tiers.

Strict Technical Constraints

• File Format: Flattened .png or high-quality .jpeg.
• Transparency / Alpha Channel: Strictly prohibited. PNG files must not contain an alpha channel. Any transparency flag triggers an immediate App Store Connect validation error.
• Color Profile: RGB color space (sRGB or Display P3), 72 dpi.
• Image Count: Minimum 1 screenshot, maximum 10 screenshots per display size per localized language.
• Orientation: All screenshots in a single device set should share the same orientation (portrait or landscape).

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App Store Connect Simplification: Do You Need Every Size?

A common misconception among developers is that you must generate unique screenshots for every iPhone and iPad model ever released. In practice, Apple uses an automatic display-downscaling mechanism.

The Two Core Sets for Most Apps

For most modern iOS applications, App Store Connect requires only the highest resolution tier within each hardware family:

1. iPhone: Provide the 6.9-inch display (1320 × 2868 px). Apple automatically scales these assets down to fit 6.7-inch, 6.5-inch, 6.3-inch, and 6.1-inch devices on the store front. If you support older notchless layouts, supplying the 6.5-inch tier (1284 × 2778 px or 1242 × 2688 px) is also accepted.
2. iPad: If your Xcode build target is a Universal binary supporting iPadOS, provide the 13-inch display (2064 × 2752 px). Apple downscales this asset to accommodate 11-inch iPad Pro, 10.9-inch iPad Air, and iPad mini displays.

When to Provide Custom Sizes

Downscaling works well for standard framed mockups and full-bleed graphics. However, you should manually supply dedicated sizes if:

• UI Elements Shift Under Dynamic Island: Your app relies on absolute top-margin spacing that risks colliding with Dynamic Island cutouts or older hardware notches.
• Aspect Ratio Discrepancies: You are supporting legacy 5.5-inch 16:9 displays (iPhone 8 Plus tier) where a 19.5:9 image would introduce black letterboxing or unintended cropping.
• Pixel-Critical Typography: You want captions and UI labels to remain pin-sharp without browser or client-side interpolation artifacts.

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Common App Store Connect Screenshot Rejections & How to Fix Them

Even experienced teams encounter rejection notices during release submission. Here are the three most frequent screenshot errors and their solutions:

1. Error: "Images cannot contain an alpha channel"

• Cause: When exporting PNGs from design tools or the macOS simulator, the PNG format often includes a 32-bit RGBA channel by default—even if every pixel has 100% opacity.
• Fix: Flatten the image to 24-bit RGB. You can strip the alpha channel in macOS Terminal using sips -s format png input.png --out output.png or export directly from SnapWright, which automatically removes the alpha channel from every PNG export.

2. Error: "Invalid dimension for display target"

• Cause: Submitting a screenshot that is off by a few pixels (such as uploading a raw simulator screen of 1170 × 2532 into the 6.7" slot, or inverting landscape width and height).
• Fix: Double-check your output against the exact pixel dimensions in the table above. Ensure that landscape screenshots use the exact inverse of portrait dimensions (for example, 2868 × 1320 px for 6.9-inch landscape).

3. Error: "Mismatched orientation across screenshots"

• Cause: Mixing portrait and landscape images within the same device size category.
• Fix: App Store Connect expects consistent presentation. While Apple technically permits mixed orientations in some scenarios, listings perform and render best when all 1 to 10 screenshots in a device set share a uniform orientation.

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Step-by-Step: Exporting Store-Ready Screenshots in SnapWright

SnapWright eliminates sizing guesswork by rendering exact Apple Store Connect specifications directly in your browser.

1. Select Your Device Frame: Choose real device frames (iPhone with Dynamic Island or notch, iPad 13") drawn in code.
2. Import Raw Screens: Drop in raw captures from your Xcode simulator or physical device.
3. Choose a Template: Apply one of SnapWright’s 8 pre-built templates (Bold, Minimal, Gradient, Panoramic, Dark, Editorial, Pop, Alternating) to style your entire set in one click.
4. Run the Pre-Export Check: Before generating your download, SnapWright lists missing images, empty or untranslated text, overflow, low-resolution screens, and store count limits. SnapWright writes PNGs without an alpha channel at exact store sizes.
5. Export Fastlane-Ready ZIP: Download flattened, compliant PNGs organized into exact resolution folders ready for immediate store upload or automated Fastlane delivery.