How to Upload Screenshots to App Store Connect

Before You Begin: Preparation Checklist

The upload process itself is straightforward, but preparation determines whether that process goes smoothly or becomes a frustrating cycle of rejections and re-uploads. Taking time to verify your assets before opening App Store Connect saves hours of troubleshooting later.

Your screenshots must meet Apple's technical specifications exactly. This means PNG or JPEG format only, RGB color space (not CMYK, which print designers sometimes use), and completely flattened files with no transparency or alpha channels. While Apple states a minimum of 72 DPI, modern screenshots are typically created at much higher resolutions to ensure crisp display on Retina screens.

Dimensions must be precise. Apple's system validates pixel counts exactly—a screenshot that's 1289 × 2796 when it should be 1290 × 2796 will be rejected. Double-check your export settings and verify dimensions with your operating system's file inspector before attempting upload.

File naming, while not strictly required to follow a specific format, helps you stay organized. Consider a naming convention like "iPhone67_01_MainFeature.png" that indicates device size, order, and content at a glance. This becomes invaluable when managing screenshots across multiple device types and localizations.

Navigating the Upload Interface

Log into App Store Connect and navigate to your app through the "My Apps" section. Select the specific version you're preparing for submission—if you're updating an existing app, you'll need to create a new version before you can modify screenshots.

Scroll down to the "App Store" tab, then continue to the "Screenshots" section. Here you'll see tabs or dropdown menus for different device sizes: 6.9" Display, 6.7" Display, 6.5" Display, 5.5" Display, and various iPad sizes. Each device type has its own screenshot set, though Apple will intelligently scale from larger sizes to smaller ones when you don't provide all variations.

For each device size, you can upload up to 10 screenshots. The order matters significantly—your first screenshot appears in search results and should be your strongest. To upload, simply drag and drop your prepared images onto the designated area, or click to browse your file system. Watch for any immediate error messages that indicate format or dimension issues.

After uploading, you can reorder screenshots by dragging them into your preferred sequence. Preview how they'll appear by using the preview options within App Store Connect. Take time to check each device size, as automatic scaling can sometimes produce unexpected results.

Troubleshooting Rejection Issues

Even well-prepared screenshots sometimes trigger rejection errors. Understanding the common causes helps you resolve issues quickly.

Dimension errors are the most frequent culprit. If you receive a "wrong dimensions" error, re-verify your pixel counts match Apple's requirements exactly. Some image editors add or remove pixels during export due to anti-aliasing or compression settings. Export at 100% scale with no interpolation to avoid this issue.

Alpha channel errors occur when your image contains transparency, even if it doesn't appear transparent visually. Open your file in an image editor and explicitly flatten it or convert to a format that doesn't support transparency. The quickest fix is often to screenshot your screenshot—this automatically removes any alpha channel data.

Color space errors indicate your image isn't in RGB format. CMYK images, common in print workflows, must be converted to RGB. Additionally, ensure you're using the sRGB color profile specifically, as Apple's display pipeline is optimized for this standard.

"Too many screenshots" errors appear if you exceed the 10-screenshot limit per device type. Remove extras before attempting to upload more. If you're at the limit and want to add new screenshots, you'll need to remove existing ones first.

Best Practices for Ongoing Management

Screenshots aren't a one-time task. Successful apps continuously optimize their visual presentation based on performance data and product evolution. Establish workflows that make updates efficient.

Keep your source files organized and accessible. Store your design templates, exported screenshots, and working files in a version-controlled or clearly organized folder structure. When you need to make updates—whether for a new feature, seasonal promotion, or A/B test—you'll be able to iterate quickly.

Document your screenshot strategy. Note which messages performed well, which layouts drove conversions, and what you learned from any A/B tests. This institutional knowledge becomes invaluable as your app evolves and team members change.

Schedule regular screenshot audits. At minimum, review your screenshots whenever you update your app significantly. Quarterly reviews can catch outdated UI that no longer matches your current app, messaging that could be refreshed, and opportunities to highlight new features or achievements.