Comparison

Card Centering Calculator vs CenterMint

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

Head to head
About

Card Centering Calculator

This app helps trading card collectors accurately measure card centering for professional grading. It offers automatic border detection with manual adjustments, clear measurement results, and the ability to compare potential grades across major companies. Save and manage your analyzed cards to stop guessing and start measuring.

Highlights
  • Accurate centering measurements
  • Automatic border detection
  • Manual guide adjustments
  • Compare potential grades
  • Save and manage analyzed cards
  • Image import via camera or photos
Features
Read full description

Get accurate centering measurements for your trading cards quickly and easily. Ideal for collectors preparing cards for PSA, BGS, CGC, SGC, or TAG grading. - Easy image import (Camera or Photos). - Automatic border detection plus manual guide adjustments. - Clear Left/Right and Top/Bottom centering results. - Compare potential grades across major grading companies. - Save and manage your analyzed cards. Stop guessing, start measuring! Get Card Centering Calculator now. Privacy Policy: https://ccc.ardasen.com/privacy.html Terms of Use: https://ccc.ardasen.com/terms.html

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

Screenshots

Card Centering Calculator4 screens
CenterMint4 screens

Verdict

The call

The clearest difference is rating: CenterMint at 5.0 against Card Centering Calculator's 4.4. CenterMint also leads on update cadence (every 3 days vs every 2 weeks). Card Centering Calculator's advantage is ads (none vs shown) and ratings volume (59 vs 1). On price, in-app purchases, monetization model and device support 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. Card Centering Calculator sells 2 in-app purchases, starting at $2.99 per 7 days and CenterMint sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CenterMint holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Card Centering Calculator has 59 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Card Centering Calculator ships an update every 2 weeks, CenterMint every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
Card Centering Calculator versus CenterMint: the parameters behind the verdict, then further details
ParameterCard Centering CalculatorCenterMint
PriceFreeFree
Rating4.4 (59 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings59 — better1
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size18 MB67 MB
Age rating4+4+
DeveloperArda SenJIAPENG Zhao

Customer experience

Card Centering Calculator

All ratings58 ratings
Positive82.8%
Neutral3.4%
Negative13.8%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

CenterMint

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Card Centering Calculator

Subscriptions2
  • Weekly Subscription3 Days trial$2.997 Days
  • Yearly Subscription$19.991 Year
2 purchases

CenterMint

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

Questions

Is Card Centering Calculator free?
Card Centering Calculator is free to download, with in-app purchases available.
Is CenterMint free?
CenterMint is free to download, with in-app purchases available.
Which has better reviews, Card Centering Calculator or CenterMint?
CenterMint is rated higher. Card Centering Calculator averages 4.4 out of 5 from 59 ratings, while CenterMint averages 5.0 from 1 ratings.
Do Card Centering Calculator or CenterMint have ads?
CenterMint shows ads; Card Centering Calculator does not.
Which is updated more often, Card Centering Calculator or CenterMint?
Card Centering Calculator ships an update every 2 weeks, and CenterMint every 3 days. Most recently, Card Centering Calculator was updated on October 24, 2026 and CenterMint on October 28, 2026.

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