Screenshot Studio
Compose, caption, score and upload the whole gallery without leaving the tool.
Galleries and devices
iPhone, iPad and Mac are separate galleries — the device selector swaps which one you're editing, not just the preview size. Within a device group every required size is composited from the one source image.
Drop your captures into slots, then set the headline, background, texture, accent and frame per slot or across the whole set with the bulk toolbar.
- Mac. Mac sizes design against a MacBook mockup on a landscape 16:10 canvas, and are export-only: Mac screenshots live on a separate macOS version in App Store Connect, which this tool doesn't write to yet.
- The cap. App Store Connect allows ten screenshots per set. Uploading one at a time into a full set is refused — "Upload all" replaces the set instead, which is the working path for a published app.
Styling and captions across languages
Visual styling is stored once, on English, and shared by every locale — one adjustment restyles all of them. Images and caption text stay per-locale, because a market can have its own captures and certainly has its own words.
Captions for other languages are transcreated from the English gallery slot for slot, so slot 4 describes the feature actually pictured in slot 4 everywhere.
Scoring and upload
The score card grades a draft set the way a browsing user reads it: legibility at thumbnail size, whether the first two shots carry the value, and how much text is competing with the UI.
When you're happy, upload straight to App Store Connect. Images are re-encoded to clean sRGB at Apple's exact pixel sizes on the way out, which is what stops the silent rejections.
On this page in the app
- Already in App Store Connect
- Upload all to App Store Connect