Look beneath the pixels.
Read actual file headers, dimensions and PNG transparency information. A white-looking image can still carry an alpha channel.
YOUR LAST CHECK BEFORE LAUNCH
Great assets.
Zero upload surprises.
Check your App Store images. Fix the technical details. Get a neatly packed folder, ready for your final review.
◉ Runs on your device✓ Free to use↗ No file uploads
THE WORKSPACE
Your pre-launch pit stop.
Drop your assets here
PNG or JPEG · up to 20 files · 15 MB each
Or drop a batch straight from your design folder.Batch overview 0
▧A clear path from design to upload.
Your images and technical checks will appear here.
New here? Start with the sample batch above.
LESS FRICTION, MORE SHIPPING
From “will this work?” to a clean export.
Keep the composition yours.
Preview padding or cropping, choose a background, and check the result before exporting. Your originals stay untouched.
Leave with a tidy handoff.
Get images grouped by placement, plus a JSON report of the input checks and export settings. Ready for your final visual review.
THE SMALL PRINT, MADE USEFUL
Get the details right.
01 · SIZE REFERENCEA home for every
Opaque image.
A better screenshot
A home for every
creative asset.
Header, search and universal image specifications.
Explore the size guide ↗02 · QUICK FIXOpaque image.
Hidden alpha channel.
Why flattening an image and removing alpha are different.
Understand alpha channels ↗03 · BEFORE SUBMITTINGA better screenshot
handoff checklist.
Technical checks, real app UI and final visual review.
Read the checklist ↗Independent tool, not affiliated with Apple. Image checks only; video and content review are not included. Creative asset specifications ↗ · Screenshot specifications ↗