Apple's screenshot specifications list four accepted Mac sizes, all in a 16:10 aspect ratio:
| Size (pixels) | Notes |
|---|---|
| 1280 × 800 | Smallest accepted |
| 1440 × 900 | Common non-Retina 16:10 |
| 2560 × 1600 | Retina 16:10 |
| 2880 × 1800 | Largest accepted; best for crisp display |
Screenshots are required for Mac apps. The general App Store rules apply too: up to 10 screenshots, in .jpeg, .jpg, or .png, and no alpha channels or transparency.
If you're shipping on iPhone and iPad as well, see our App Store screenshot sizes guide and the screenshot size reference tool.
Use 2880 × 1800 unless you have a reason not to. It's the highest resolution Apple accepts for Mac and gives the sharpest result on Retina displays. Use one size consistently across your set so the gallery doesn't jump in quality.
A frequent upload error is a screenshot captured on a display whose native resolution isn't 16:10—many external monitors are 16:9, and some MacBook displays have notch-related resolutions that don't match the list. App Store Connect will reject images that don't exactly match an accepted size. Capture first, then resize or pad to an exact accepted size rather than uploading raw captures.
Our resize tool sets exact pixel dimensions, and the screenshot checker confirms dimensions before you upload.
iPhone screenshot conventions don't transfer neatly to the Mac:
Capture your app window (with its shadow) and place it on a simple background, leaving room for a caption across the top. This looks native and keeps the real UI the focus.
For dense apps, show the full window on frame 1, then zoom into specific panes on later frames: the editor, the inspector, the export dialog. A cropped, enlarged region at 2880 × 1800 reads far better than a whole window shrunk into a thumbnail.
If your app's value is how it fits a workflow—menu bar utility, drag and drop between apps, Shortcuts integration—show that moment explicitly. A small annotation arrow or highlight is acceptable, since Apple's guidelines allow overlays that explain interaction as long as the app is shown in use.
Captions should lead with outcomes, just like on iOS—"Edit RAW photos without importing" beats "Powerful photo editing." But desktop shoppers also look for workflow signals. Captions that tend to help on Mac:
Avoid prices, competitor names, and unverifiable superlatives; Guideline 2.3 applies to Mac listings exactly as it does to iOS.
If you ship a universal purchase or a Mac Catalyst app, you'll still provide Mac screenshots separately in App Store Connect. Don't reuse iPad screenshots by stretching them to 16:10. A Mac shopper should see the Mac UI—menu bar, window controls, pointer interactions.
Keep the story consistent across platforms, though: same feature order, same caption vocabulary, adapted for each form factor. That makes your listing coherent for people who use your app on several devices.
Mac apps can also include app previews (short videos). If your app's value is a workflow that's hard to show in a still—drag and drop, live preview, real-time collaboration—a preview can help. Our comparison of app preview video vs screenshots covers when video is worth the effort.
Mac App Store screenshots are simple on paper—four 16:10 sizes—but they reward a different design approach than iPhone sets. Capture on Retina, export at 2880 × 1800, show real windows on clean backgrounds, zoom into dense areas, and keep captions focused on desktop workflow benefits.