Comparison

Card Centering Checker 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

Card Centering Checker

Read full description

Card Centering Checker is the fastest way to estimate the centering grade of any trading card before you submit it. Built for serious collectors of Pokémon, sports, Magic, and TCG cards who refuse to throw $25–$75 at a grading service hoping for a 10. Snap a photo. Drag 8 alignment bars. Get an instant PSA, BGS, and CGC centering grade — all three scales, side by side, calibrated against each company's official tolerances. WHY COLLECTORS LOVE IT • Real grading math — not a guess. Calibrated to PSA's 55/45 front, 75/25 back rule, BGS sub-grades, and CGC tolerances. • 8 draggable bars give you pixel-perfect alignment — pinch to zoom in tight on the borders. • Front + back support. The worse side determines the grade, just like the real graders. • Beautiful 1080×1080 share images for eBay listings, Reddit, Instagram, and group chats. • Premium PDF reports with QR codes for buyers and PWE trades. • Organized library — collections, filters, search, sort by grade. • Build submission lists before you ship to PSA, BGS, or CGC. ONE PAYMENT. YOURS FOREVER. $6.99 once. No subscriptions. No ads. No data harvesting. Every future feature included. PRO UNLOCKS • Unlimited centering checks • Unlimited collections • PSA + BGS + CGC grading scales • Clean share images (no watermark) • Pro-level editor zoom WHAT FREE GETS YOU • 3 collections, 50 saved scans • Full PSA centering grades, free forever • Watermarked share images PRIVACY FIRST Photos never leave your device unless you choose to share them. No accounts. No cloud. No tracking. DISCLAIMER Card Centering Checker provides centering estimates only. Final grades from PSA, BGS, and CGC depend on additional factors including surface, edges, corners, and print quality. Results are an indicator, not a guarantee. Pre-grade like a pro. Stop submitting your bad ones.

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

Card Centering Checker4 screens
Ding Detect4 screens

Verdict

The call

Card Centering Checker and Ding Detect are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 Checker sells 1 one-off in-app purchase and Ding Detect sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Card Centering Checker versus Ding Detect: the parameters behind the verdict, then further details
ParameterCard Centering CheckerDing Detect
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.1 — better15.5
Further details — not scored
Size51 MB66 MB
Age rating4+4+
DeveloperSean Hai Fung YangTechcave, LLC

In-app purchases

1 purchases

Card Centering Checker

One-time1
  • Pro Lifetime$6.99
1 purchases

Ding Detect

One-time1
  • Card Centering Tool$3.99

Questions

Is Card Centering Checker free?
Card Centering Checker is free to download, with in-app purchases available.
Is Ding Detect free?
Ding Detect is free to download, with in-app purchases available.
Do Card Centering Checker or Ding Detect have ads?
Neither Card Centering Checker nor Ding Detect shows ads.

Other comparisons