Comparison

CenterMint vs Ding Detect

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

Ding Detect

Instantly measure the centering of trading cards using your phone. Get estimated grade tiers from major grading companies and track your collection strategy. Export and share your results.

Highlights
  • Centering analysis for front and back
  • Grade predictions for major companies
  • Customizable guide controls
  • Scan history tracking
  • Dashboard performance stats
  • Export and share results
Features
Read full description

DingDetect – Card Centering Checker Know your centering before you submit. DingDetect lets you measure the centering of your trading cards in seconds and instantly see how your card stacks up against PSA, BGS, CGC, ACE, and TAG grading standards — right from your phone. Whether you're deciding which cards are worth submitting or building a collection strategy, DingDetect gives you the data you need before spending on grading fees. HOW IT WORKS Take a photo or upload from your gallery, align the guide lines to your card's borders, and DingDetect calculates the top, bottom, left, and right centering percentages. Results are mapped instantly against published grading standards so you can see your estimated grade tier for each company at a glance. FEATURES • Centering analysis for front and back of any card • Grade predictions for PSA, BGS, CGC, ACE, and TAG • Draggable guide tabs or edge sliders — choose the control style that works for you • Scan history to track and revisit every card you've checked • Dashboard stats showing total scans and per-company centering performance over time • Customizable settings — show only the grading companies you care about • Export and share your centering results as an image COMING SOON Ding Detect — AI-powered surface scanning to automatically identify dings, scratches, and print defects before you submit. FREE & PRO DingDetect is free to try with 2 scans per day. Upgrade to Pro for unlimited scans, sharing, and full access to all features. DingDetect is an independent app and is not affiliated with PSA, BGS, CGC, ACE, TAG or any other grading company. Centering estimates are based on publicly available grading standards and are for reference purposes only. Actual grades may vary.

Screenshots

CenterMint4 screens
Ding Detect4 screens

Verdict

The call

The clearest difference is rating: Ding Detect at 5.0 against CenterMint's 3.0. Ding Detect also leads on ads (none vs shown) and iOS requirement (15.5 vs 17.0). CenterMint's advantage is update cadence (every 3 days vs every 2 weeks). On price, ratings volume, in-app purchases and monetization model 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 Ding Detect sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Ding Detect holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

CenterMint ships an update every 3 days, Ding Detect every 2 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
CenterMint versus Ding Detect: the parameters behind the verdict, then further details
ParameterCenterMintDing Detect
PriceFreeFree
Rating3.0 (2 ratings)5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings22
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.5 — better
Further details — not scored
Size67 MB66 MB
Age rating4+4+
DeveloperJIAPENG ZhaoTechcave, LLC

Customer experience

CenterMint

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

Ding Detect

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

CenterMint

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

Ding Detect

One-time1
  • Card Centering Tool$3.99

Questions

Is CenterMint free?
CenterMint is free to download, with in-app purchases available.
Is Ding Detect free?
Ding Detect is free to download, with in-app purchases available.
Which has better reviews, CenterMint or Ding Detect?
Ding Detect is rated higher. CenterMint averages 3.0 out of 5 from 2 ratings, while Ding Detect averages 5.0 from 2 ratings.
Do CenterMint or Ding Detect have ads?
CenterMint shows ads; Ding Detect does not.
Which is updated more often, CenterMint or Ding Detect?
CenterMint ships an update every 3 days, and Ding Detect every 2 weeks. Most recently, CenterMint was updated on November 9, 2026 and Ding Detect on October 31, 2026.

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