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Drop your screenshots to check each one against Apple's accepted App Store Connect sizes before you upload. Catch the “dimensions of one or more screenshots are wrong” error before Apple does.
Check your App Store screenshot sizes
Drop your screenshots to check each one against Apple's accepted App Store Connect sizes before you upload. Nothing leaves your browser, and nothing is stored.
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App Store Connect accepts these exact pixel sizes (landscape is the same numbers reversed). Provide at least the 6.9-inch set.
| Device | Portrait |
|---|---|
| iPhone 6.9" (17 / 16 / 15 Pro Max) | 1320 × 2868 or 1290 × 2796 |
| iPhone 6.5" | 1284 × 2778 or 1242 × 2688 |
| iPhone 5.5" | 1242 × 2208 |
| iPad 13" (M4) | 2064 × 2752 |
| iPad 13" / 12.9" | 2048 × 2732 |
Full breakdown in the App Store screenshot dimensions guide, or if you already hit the error, see how to fix it.
App Store Connect validates screenshot dimensions against an exact allow-list, not a tolerance range. A screenshot that is a single pixel off, or that came from a device size Apple doesn't accept for the listing, fails the whole upload with “the dimensions of one or more screenshots are wrong.” The error usually lists the expected sizes for the bucket that failed, but it doesn't tell you which of your files is the problem.
Checking first turns a frustrating submit-reject-retry loop into a five-second confirmation. Drop your set, see exactly which screenshots pass and which need re-exporting, and fix them before you ever touch App Store Connect. It is especially useful after editing, cropping, or framing a Simulator capture, which is where off-by-a-pixel sizes usually creep in.
When something is off, the fastest fix is to re-export at the exact target size. The App Store screenshot generator locks every export to Apple's accepted dimensions, so the set you upload always matches the spec.
Drop one or more screenshots and it reads each image's exact pixel dimensions in your browser, then compares them to Apple's accepted App Store Connect sizes. Every valid screenshot is confirmed with its device bucket; anything off-spec is flagged with the nearest required size. Nothing is uploaded or stored.
iPhone 6.9-inch: 1320×2868 or 1290×2796. iPhone 6.5-inch: 1284×2778 or 1242×2688. iPhone 5.5-inch: 1242×2208. iPad 13-inch: 2064×2752. iPad 13/12.9-inch: 2048×2732. Landscape is the same numbers reversed. App Store Connect requires at least the 6.9-inch set.
It validates against an exact allow-list of dimensions, not a tolerance range. A screenshot at 1320×2867 fails the same way as one at completely the wrong size. This checker catches those near-misses before you upload, which is the most common cause of the 'the dimensions of one or more screenshots are wrong' error.
No. The check happens entirely in your browser using the image's own metadata. Your screenshots never leave your device and nothing is stored.
Re-export each one at an exact accepted size. The fastest path is to design your set once in the App Store screenshot generator and export every device at its correct native size, so the whole set matches Apple's spec automatically.
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Try it freeDesign your App Store screenshots once and export every required size at Apple's exact spec, free.
