CenterGrade App
Card Centering & Grade Predict
Only for iPhone
Free · In‑App Purchases
iPhone
Card centering. Real-time card values. ROI calculator. Market Pulse liquidity scores. Price history. The only app that tells you if grading is actually worth it.
Stop guessing whether your card will hit a PSA 10. Start knowing — and know exactly what it's worth.
CenterGrade is the only app that combines AI-powered centering analysis with real-time market intelligence. Measure centering, predict grades for 6 grading companies, check live card values, and calculate your return on investment — all before you spend a dime on grading fees.
No subscription. No daily scan limits. No data leaving your phone.
MARKET INTELLIGENCE — KNOW BEFORE YOU GRADE
This changes everything. Search any trading card and instantly see real-time estimated values, interactive price history graphs, and Market Pulse liquidity scores. Market Pulse tells you whether a card is actually selling — not just listed. Investors and collectors finally have the data they need to make smart decisions.
ROI CALCULATOR — MAXIMIZE EVERY SUBMISSION
CenterGrade calculates your projected return for every grading company based on your predicted centering grades and current market prices. See exactly which grader gives you the highest profit margin. Stop submitting cards to the wrong company.
HOW CENTERING ANALYSIS WORKS
Point your camera at any trading card — or screenshot one from eBay, an auction listing, or anywhere. AI detects the outer card edge and inner border automatically, calculates left/right and top/bottom centering ratios, and delivers instant grade predictions. Takes about 5 seconds.
Most centering apps fall apart on dark borders, holographic surfaces, and vintage stock. CenterGrade was built for exactly these cases. Cards on wood, granite, fabric, and other textured surfaces are detected reliably. A built-in leveling guide and auto-capture eliminate angle errors.
SIX GRADING COMPANIES. ONE SCAN.
See predictions for PSA, BGS, CGC, SGC, ACE, and TAG all at once. PSA and BGS predictions are always free. CGC, SGC, ACE, and TAG unlock with Pro.
FRONT AND BACK — THE WAY PSA GRADES
Scan the front, flip the card, scan the back. Both measurements factor into your predictions. Stop losing Gem Mints to a back centering problem you didn't know about.
PRECISION TOOLS
Center any card no matter how bad the photo. Drag pins to fine-tune borders. Pinch to zoom up to 15x. Screenshot card photos on ebay and center them before you invest. Undo and redo up to 20 steps. Ratios update live.
FEATURES
- Real-time card values and price history (Pro)
- ROI calculator for every grading company (Pro)
- Market Pulse liquidity scores — know if cards are selling (Pro)
- AI border detection — dark borders, foil, holo, vintage
- Instant preview — cards appear immediately, no loading
- L/R and T/B centering ratios with overall score (0-100)
- PSA and BGS predictions (free), CGC/SGC/ACE/TAG (Pro)
- Front + back scanning as a linked pair
- Collection manager with portfolio tracking
- HD capture, 15x zoom, fine adjustment (Pro)
- Shareable result cards
- 100% on-device centering — images never leave your phone
GO PRO — $4.99 ONE-TIME
- Market Intelligence with live card values
- ROI calculator and projected returns
- Market Pulse liquidity scores
- Price history graphs
- All 6 grading company predictions
- Unlimited collection
- Ad-free experience
- HD capture, 15x zoom, fine adjustment
- Guide color and line thickness picker
One price. Yours forever. No recurring charges. If CenterGrade saves you from even one bad submission, it pays for itself many times over.
Works with Pokemon, baseball, basketball, football, hockey, One Piece, MTG, Yu-Gi-Oh!, Lorcana, and any card with borders.
Privacy: https://centergradeapp.com/privacy
Terms: https://centergradeapp.com/terms
Thanks for using CenterGrade!
FIXED
• Bug fixes and performance improvements
Love CenterGrade? Leave a review — it helps more than you know!
The developer, Gabin Williams, 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:
- Location
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Gabin Williams
- Size
- 20 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- CenterGrade App Pro $4.99
- Lunch Tip $2.99
- Pack Tip $9.99
- Dinner Tip $4.99
- Coffee Tip $0.99
- Copyright
- © Gabin Williams
