Grading fees are up. Don't spend $25 finding out your card was 70/30.
Measure it in 10 seconds first front and back.
Stop paying to grade cards that will never hit a 10.
Card Centering Pro measures your card's centering in seconds then tells you if it's worth the submission fee. Front and back, down to the decimal.
WHY CENTERING DECIDES YOUR GRADE
Centering is the most common reason a card misses Gem Mint. A card that's 70/30 on the back can cap your grade at an 8 — no matter how sharp the corners are. Graders measure it with digital precision. Now so can you, before you spend a cent.
HOW IT WORKS
1. Snap or import a photo of your card
2. Edges are detected automatically — or drag the guides yourself
3. Get exact ratios: 55/45, 60/40, 52/48
4. See the best grade each company would give it
5. Submit the winners. Sell the rest raw.
FEATURES
- AUTO EDGE DETECTION
Point your camera at the card. The borders are found for you.
- MANUAL PRECISION MODE
Vintage card? Thick border? Drag high-contrast guides to any anchor point and pinch to zoom for decimal-level accuracy.
- FRONT AND BACK ANALYSIS
Back centering sinks more submissions than collectors expect. Measure both sides and see your true ceiling.
- GRADING STANDARDS LIBRARY
Current centering thresholds for every major service, built in and kept up to date. Know which one gives your card the best shot before you pick a submission.
- YOUR COLLECTION, SAVED
Every card you measure is stored with its ratios and estimated grade. Build your submission list over weeks, not in one sitting.
- WORKS OFFLINE
At a card show with no signal? Everything runs on device.
BUILT FOR EVERY CARD
Pokémon · One Piece · Lorcana · Magic: The Gathering · Yu-Gi-Oh!
Baseball · Basketball · Football · Hockey · Soccer · F1
Vintage, modern, holo, foil, full-art, borderless.
WHO IT'S FOR
COLLECTORS — Screen your box before you submit. One avoided submission pays for the app many times over.
SELLERS — Publish exact centering numbers in your listings. Measured cards sell faster and close higher.
BUYERS — Check the photos in a listing before you bid. Don't overpay for a card that's off-center.
BREAKERS — Rip, measure, sort. Know what's worth slabbing before the box is even empty.
Free to measure. Upgrade anytime for unlimited saved cards and full front-and-back analysis.
Not affiliated with or endorsed by any grading company. Results are an estimate of centering only and do not predict a final grade, which also accounts for corners, edges and surface.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
What is new?
Improved centering precision
Improved UI and UX
Improved touch screen for point corners
Improved Collection UI
Version 1.0.2.2
The developer, Matteo Giannessi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Purchases
Contact Info
User Content
Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Dark Interface
Information
Seller
Matteo Giannessi
Size
42.8 MB
Category
Utilities
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.