Official source · current
Apple screenshot specifications ↗
Source verified 2026-08-14. Reviewed on the recorded date. Confirm the active notice for your exact application. View source register.
Destination validator · browser local
Audit a set of App Store images before delivery.
Choose a batch of screenshots, apply one of the current canvas profiles, and see which measured pixel or format differences need attention before packaging.
What this workspace does
A local asset-set checklist and route into the existing App Store pack builder.
Use it accurately
Apple’s product requirements and valid device sets can change. Verify the current App Store Connect documentation.
Private browser processing
Selected files are processed in the current browser session. Aftermath has no account, cloud file storage, or server-side file-processing job.
How to check your file
Audit a set of App Store images against the measurable values you enter from the current official requirements. The browser reports local comparisons and warnings for missing information, but it does not establish device authenticity, visual compliance, or final App Store acceptance. Verify the source group and the current Apple documentation before delivery.
What to choose and what you get
What to choose
- App Store screenshot assets and the active Apple size rules
Result
- a measured App Store screenshot comparison with warnings
Supported formats
- Accepted formats: JPG, PNG, WebP.
- Output formats: HTML report.
Browser support and permissions
- Modern browser with JavaScript, a supported image decoder, and enough memory for the selected set.
- No camera, microphone, or screen permission is needed.
Worked example
A set of authentic App Store screenshots needs comparison with the active Apple size rules before upload.
Starting facts
- The assets are genuine captures for the selected device family.
- Current Apple documentation controls the allowed sizes.
- Synthetic measurement example: a 2064 × 2752 test image is compared with the bundled iPad portrait preset of 2064 × 2752 pixels. This fixture is not an authentic app screenshot.
Observed operation: Select the device family and compare each local image's decoded pixels, bytes and format with the active rule set.
Review the result: The synthetic fixture matches the selected width and height; format and byte checks must also pass. For a real submission, review genuine UI content, localization, and the current destination rules.
Boundary: The validator cannot certify store review, device authenticity, localization quality, rights or future Apple requirements.
Check your result
- Apple’s product requirements and valid device sets can change. Verify the current App Store Connect documentation.
Things to know
- External requirements can change; compare the result with the current official source before submitting it.
Privacy boundary
Selected image bytes and entered rule values stay in the current browser session and are not sent to an Aftermath processing service. How local processing is verified.
What this tool verifies
Checks the displayed limits and reports or creates a measured App Store screenshot comparison with warnings from App Store screenshot assets and the active Apple size rules.
Check before sharing
A measured pass checks the entered file rules; it does not guarantee acceptance by the external destination.
Result checks
Method and observed boundary
Read the worked example and result review
Checks represented by this receipt
- local file boundary: verified
- image measurement: verified
- validator transparency: verified
Limitation: The validator cannot certify store review, device authenticity, localization quality, rights or future Apple requirements.
Tested 2026-09-01. Deterministic release regression; cross-browser compatibility is not asserted.