Comparison

Card Grader Pro 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 Grader Pro

Instantly assess the condition of your trading cards with AI-powered analysis of centering, edges, corners, and surface. For a more in-depth evaluation, choose expert human grading for detailed notes, rarity assessment, and submission guidance. Explore a community showcase of graded cards and view their market prices.

Highlights
  • AI-powered instant grading
  • Expert human grading
  • Condition notes and rarity assessment
  • View card prices
  • Community showcase
Features
Read full description

Get your cards graded instantly with AI or opt for expert human grading! Instantly receive an estimated grade using advanced AI image recognition, analyzing centering, edges, corners, and surface quality. For a more detailed assessment, upgrade to human grading, where an expert will carefully review your card, provide condition notes, assess rarity, and offer guidance on whether it’s worth submitting to a professional grading company. Key Features: - AI-Powered Instant Grading: Get an instant grade with cutting-edge image analysis. - Expert Human Grading: Receive a detailed review with personalized feedback. - Market: Sell your own cards, and buy cards from other users! - Community Showcase: Browse and compare other users’ graded cards. - View card prices! - And more! Card Grader Pro provides AI and human grading as informational estimates only. We do not guarantee any card will receive the same grade from PSA, BGS, CGC, or any other official grading service, and we are not liable for differences in grades, grading outcomes, or related losses. Terms of use: https://firebasestorage.googleapis.com/v0/b/pack-fresh.firebasestorage.app/o/policies%2FTermsOfUse.html?alt=media&token=42470ab8-bf02-4619-8f13-0f44255f7a3b Card Grader Pro is an eBay Partner and may earn a commission on purchases made through links in the app.

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? Check its centering, corners and edges before you pay to find out. CenterMint measures the centering of raw trading cards and sports cards from a single photo. It finds the card's cut edge and printed border on all four sides, shows the left/right and top/bottom ratios, and tells you the best centering grade those ratios allow under common published standards (PSA, BGS, CGC and more). Works with raw standard-size cards such as Pokémon, One Piece, Magic: The Gathering and sports cards; smaller cards like Yu-Gi-Oh! can be measured too, but check the lines. NEW IN 1.11 • Border widths in mm or inches under every ratio (or off). The card size is detected from the photo, sports cards and the smaller Yu-Gi-Oh! size included. Free for everyone. • Corner & edge close-ups now sit right under your result, with thumbnails of all four corners. Free on 3 cards every week. • Free users get a batch of up to 5 photos every week. • A sharper, redrawn app icon. KEY TOOLS • Line-by-line check: when a photo needs a second look, CenterMint takes you to the line it's least sure about first, with the magnifier already in place. Tap "Looks Right" to move to the next one. • Know why: glare, blur, low light, low resolution, a mat that matches the card edge, or no printed border found. If a retake will fix it, it says so. • Worth Grading? (Pro): enter recent sold prices for the raw card, a 9 and a 10, plus the grading fee. See whether grading makes or loses money, and what a 10 has to sell for to break even. Grades the centering can't reach are left out. • Submission log (Pro): note what you sent and what it cost, add the grades when they come back, and see your top-grade rate and how the grades compare with the centering. FREE • Automatic centering for raw cards, a 1x–50x magnifier and manual line adjustment • Line-by-line check and retake tips • Front and back pairing, saved history with search, and share images • Border widths in mm or inches, close-ups on 3 cards every week, a batch of up to 5 photos every week, and Worth Grading? on one card The free version shows ads. CENTERMINT PRO No ads, Worth Grading?, corner & edge close-ups, submission log, a decision assistant that sorts your cards into submit / fix first / below target, batch scanning of up to 50 photos, submission checklist PDF, report images, 4K enhanced view and export, CSV export and saved presets. Choose a monthly or yearly subscription (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 current period. Manage them in your Apple Account settings. WHAT IT DOESN'T DO • Automatic measurement is for raw cards only. For a card in a sleeve, top loader or graded slab, you line up the four edges yourself. When CenterMint detects a sleeve, it tells you and switches to manual alignment. • It measures centering only. It doesn't grade corners, edges or surface (the close-ups are for your own eyes), and it can't promise any grade. • Full-art and borderless cards may have no printed border, so their results are a reference. • Centering standards are references based on each company's published guidelines. CenterMint is an independent app and is not affiliated with PSA, Beckett (BGS), CGC or any grading company. It is not affiliated with any card publisher either; 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. Sharing samples to improve detection is off by default. App languages: English, Japanese, Korean, Vietnamese, Simplified Chinese and Traditional Chinese. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://centermint.app/privacy

Screenshots

Card Grader Pro4 screens
CenterMint4 screens

Verdict

The call

The clearest difference is ads: Card Grader Pro at none against CenterMint's shown. Card Grader Pro also leads on ratings volume (4.9K vs 1) and iOS requirement (15.5 vs 17.0). CenterMint's advantage is rating (5.0 vs 4.7). On price, update cadence, 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. Card Grader Pro sells 9 in-app purchases, starting at $4.99 per month and CenterMint sells 2 in-app purchases, starting at $2.99 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 4.7. That said, the two scores are not equally well evidenced: Card Grader Pro has 4.9K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Card Grader Pro versus CenterMint: the parameters behind the verdict, then further details
ParameterCard Grader ProCenterMint
PriceFreeFree
Rating4.7 (4.9K ratings)5.0 (1 ratings) — better
Positive reviews57.1% of reviews—
Number of ratings4.9K — better1
Update frequencyEvery 4 daysEvery 4 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size148 MB52 MB
Age rating4+4+
DeveloperDaniel YaakobJIAPENG Zhao

Customer experience

Card Grader Pro

All ratings4,923 ratings
Positive94.0%
Neutral2.2%
Negative3.9%
Written reviews333 reviews
Positive57.1%
Neutral8.7%
Negative34.2%

CenterMint

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

Bugs and requests

Card Grader Pro

Reported bugs

2 issues
  • Grading information is the same for all cards
  • Doesn't work half the time

Requested features

2 requests
  • Leveler when taking pictures
  • More advanced grading capabilities

CenterMint

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Card Grader Pro

Subscriptions4
  • Pro Monthly$4.991 Month
  • Pro+ Monthly$9.991 Month
  • Pro Yearly$49.991 Year
Show 1 more
  • Pro+ Yearly$99.991 Year
One-time5
  • Human Grade$1.49
  • Fast Human Grade$1.99
  • Human Grade$2.99
Show 2 more
  • Fast Human Grade$3.49
  • Fast Human Grade$4.99
2 purchases

CenterMint

Subscriptions2
  • CenterMint Pro$2.991 Month
  • CenterMint Pro$19.991 Year

Questions

Is Card Grader Pro free?
Card Grader Pro 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 Grader Pro or CenterMint?
CenterMint is rated higher. Card Grader Pro averages 4.7 out of 5 from 4.9K ratings, while CenterMint averages 5.0 from 1 ratings.
Do Card Grader Pro or CenterMint have ads?
CenterMint shows ads; Card Grader Pro does not.
Which is updated more often, Card Grader Pro or CenterMint?
Card Grader Pro ships an update every 4 days, and CenterMint every 4 days. Most recently, Card Grader Pro was updated on October 25, 2026 and CenterMint on October 24, 2026.

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