App Store

Mac screenshot size: 2880 × 1800

The exact resolution App Store expects for Mac, what gets a file rejected, and a way to produce it in the browser without installing anything.

What this size is for

Mac App Store listings. Required if you ship a Mac app; irrelevant otherwise, which is why it sits apart from the iPhone sizes.

What gets a file rejected

Three things, and each one is enough on its own. The resolution has to match exactly — a file scaled to 2× is a different size, not the same size at higher quality. The image cannot carry an alpha channel: Apple rejects PNGs with transparency even when nothing in them is transparent. And the file has to be flat RGB, not CMYK.

MobileShots exports this canvas at 1× with the alpha channel flattened, because a store canvas is not a canvas with a different size — it is a form with rules, and the rules are not the author's to choose.

The other App Store sizes

A listing usually needs more than one. These are the rest, same source, same editor.

All App Store and Google Play screenshot sizes