Comparison

CenterMint vs Grade Cards

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CenterMint

Analyze the centering of trading cards from a single photo to determine their grading potential. It calculates border ratios and provides insights into whether a card is worth submitting for professional grading, with options for detailed analysis and submission tracking.

Highlights
  • Automatic centering measurement
  • Border ratio calculation
  • Grading standards comparison
  • Worth Grading? profit calculator
  • Submission log
  • Corner and edge close-ups
  • Line-by-line manual adjustment
Features
Read full description

Is this card worth grading, and what is it worth? Measure its centering from one photo, then see what it sells for in Japan, the US and Europe. CenterMint finds the cut edge and the printed border on all four sides of a raw card, shows the left/right and top/bottom ratios, and tells you the best centering grade they allow under common published standards (PSA, BGS, CGC and more). Works with standard-size cards such as Pokémon, One Piece, Magic: The Gathering and sports cards; smaller cards like Yu-Gi-Oh! can be measured too. NEW IN 2.0 • Japanese Pokémon card prices: more than 30,000 cards, from promos and high rarities to Master Ball mirrors. Pick your market (Japan in yen, the US in dollars, Europe in euros) and see recent sales and a 30-day chart. • English version prices too, when it is clearly the same card, so you can tell which print is cheaper. • No recent sales? It says so and shows a shop price or the lowest listing, clearly labeled, instead of guessing. • Follow cards and get a price alert when one moves 5%, 10% or 20% (you choose). Alerts on 3 cards are free. • Worth Grading? now finds the card in the catalog and fills in its prices for you. • Line styles made for the card in your hand: white borders, black borders and foil. • The app speaks 15 languages. Prices are for reference only, not buying or selling advice. HOW IT WORKS • Take a photo or import one. The frames are found automatically. • Not sure about a line? CenterMint takes you to the least certain one first, with the magnifier already on it. Tap "Looks Right" to move on, or nudge it a pixel at a time with the magnifier, pixel grid and edge profile. • Save the front and back as a pair, search your history, and share a clean image. FREE • Automatic centering for raw cards, a 1x–50x magnifier and manual adjustment • Border widths in mm or inches • Corner and edge close-ups on 3 cards a week, one batch of up to 5 photos a week, Worth Grading? on one card • Card prices, the 30-day chart and alerts on 3 cards The free version shows ads. CENTERMINT PRO No ads, graded prices (PSA 10, PSA 9 and more) with full history, unlimited price alerts, Worth Grading?, corner and edge close-ups, a submission log, a decision assistant that sorts cards into submit / fix first / below target, batch scanning of up to 50 photos, a submission checklist PDF, report images, 4K enhanced view and export, CSV export and saved presets. Choose monthly or yearly (yearly starts with a 1-week free trial); prices are shown in the app. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period. Manage them in your Apple Account settings. GOOD TO KNOW • Automatic measurement is for raw cards. For a card in a sleeve, top loader or slab, you line up the edges yourself; CenterMint tells you when it sees a sleeve. • It measures centering only. Corners, edges and surface are for your own eyes, and no grade is ever promised. • Centering standards are references based on each company's published guidelines. CenterMint is an independent app, not affiliated with PSA, Beckett (BGS), CGC or any grading company, or with any card publisher. Pokémon, One Piece, Yu-Gi-Oh! and Magic: The Gathering are trademarks of their respective owners. Measurement runs on your device and needs no account. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://centermint.app/privacy

About

Grade Cards

Features
Read full description

Grading & Sammelkarten-Wertermittlung Erhalten Sie schnelles und präzises KI-Grading für alle Ihre Karten. Entdecken Sie in nur wenigen Minuten, wie Sie den Wert Ihrer Sammlung maximieren können. Hauptfunktionen Detailliertes Massen-Grading: Scannen Sie mehrere Karten gleichzeitig mit punktgenauer Präzision für Mängel an jeder einzelnen Karte. Professionelle Empfehlungen: Smarte Empfehlungen dazu, ob sich das Einsenden einer Karte für ein professionelles Grading lohnt. Raw- & Graded-Preise: Sofortige Marktpreise für jede Karte — sowohl im unbewerteten (Raw) als auch im bewerteten (Graded) Format. 30-Tage-Portfolio-Trends: Verfolgen Sie Gesamtwertveränderungen und Trends Ihres Portfolios über die letzten 30 Tage. Eigene Sammlungen: Organisieren und verwalten Sie Ihre Karten durch das Erstellen separater, individueller Sets. Erweiterte Suchfilter: Finden Sie spezifische Karten ganz einfach mithilfe mehrerer Suchparameter. Terms of Use: https://docs.google.com/document/d/1neVvBDRERCtBRTNEmyJZnwwjc_wGn7HO75P7Y3tZWL8/edit?usp=sharing Privacy: https://docs.google.com/document/d/1TbBPOX6xbRVotIZlg3LVmbMY0mJU2cafthJNPf95l8Y/edit?usp=sharing

Screenshots

CenterMint4 screens
Grade Cards4 screens

Verdict

The call

The clearest difference is ads: Grade Cards at none against CenterMint's shown. CenterMint's advantage is update cadence (every 3 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CenterMint sells 2 in-app purchases, starting at $4.99 per month and Grade Cards sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CenterMint ships an update every 3 days, Grade Cards fortnightly. The most recent releases landed on November 9, 2026 and November 11, 2026 respectively.

Scorecard2 real differences · 7 level
CenterMint versus Grade Cards: the parameters behind the verdict, then further details
ParameterCenterMintGrade Cards
PriceFreeFree
Rating3.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size67 MB37 MB
Age rating4+4+
DeveloperJIAPENG ZhaoMykola Goncharov

In-app purchases

2 purchases

CenterMint

Subscriptions2
  • Pro Monthly: Card Centering$4.991 Month
  • Pro Yearly: Card Grading Tools7 Days trial$29.991 Year
2 purchases

Grade Cards

Subscriptions2
  • Card Grader PRO3 Days trial$4.997 Days
  • Yearly Pro Access$79.991 Year

Questions

Is CenterMint free?
CenterMint is free to download, with in-app purchases available.
Is Grade Cards free?
Grade Cards is free to download, with in-app purchases available.
Do CenterMint or Grade Cards have ads?
CenterMint shows ads; Grade Cards does not.
Which is updated more often, CenterMint or Grade Cards?
CenterMint ships an update every 3 days, and Grade Cards fortnightly. Most recently, CenterMint was updated on November 9, 2026 and Grade Cards on November 11, 2026.

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