Comparison

Card Centering Calculator vs MintCollect

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 collectors and traders measure card centering ratios for grading. It uses AI to detect centering or allows manual adjustments for precise measurements, displaying potential grades from major companies.

Highlights
  • AI-powered card centering detection
  • Manual centering measurement with zoom
  • Grade comparisons for PSA, BGS, SGC, CGC, TAG, ACE
  • Front and back side centering measurement
  • Grading standards reference guide
  • Off-center visualization tool
Features
Read full description

Card Centering Calculator is the ultimate tool for measuring your card's centering ratios before grading. Whether you collect Pokémon, One Piece, Lorcana, Yu-Gi-Oh!, Magic, baseball, basketball, football, or other trading and sports cards, the app helps you quickly measure centering, compare grading standards, and decide if your card may be worth submitting. Scan or upload a card image to calculate real-time centering ratios, such as 55/45 or 60/40, and instantly compare the highest potential centering grades from major grading companies including PSA, BGS, SGC, CGC, TAG, and ACE. Wondering if your card has centering worthy of a Gem Mint 10? Measure it before you submit. --- Card Scanner With Auto Centering Detection --- Scan or upload your card and let the app automatically detect the card edges and calculate centering ratios. --- Precise Ratio Measurements --- Manually adjust measurement guides on each side of the card for precise centering calculations. Use zoom for ultra-accurate adjustments and fine-tuning. --- Measure in Pixels, Millimeters, or Inches --- Switch from percentages to real measurements. View each border's width in pixels, millimeters, or inches to double-check against calipers or calculate centering your own way. --- Saved Cards --- Save cards to your collection and come back to them later. Add tags, filter your saved cards, and keep track of cards you may want to grade, sell, trade, or review again. --- Perspective Fix Tool --- Correct skewed, angled, bent, or warped card images before measuring. The Perspective Fix tool helps straighten card edges so you can get cleaner and more accurate centering measurements. --- Grade Comparisons --- Instantly see the best possible centering grades from PSA, BGS, CGC, SGC, TAG, and ACE as you adjust your card's ratios. Compare grading companies and see how each company's centering standards may affect your card. --- Front and Back Side Grading --- Measure centering for both the front and back of your card, since grading standards differ between sides. --- Pokémon e-Reader Card Mode --- Measure Expedition, Aquapolis, and Skyridge e-Reader cards correctly. The dot-code strip makes the left and bottom borders wider by design, so e-Reader mode compares the top and right borders the way graders do and saves the setting with each card. --- Grading Standards Reference --- View centering standards from PSA, BGS, CGC, SGC, TAG, and ACE in one convenient reference section. --- Cropping and Image Tools --- Crop card images, upload from your photo library, scan with the camera, or upload a card image from a URL. --- Compatible With All Cards --- Use Card Centering Calculator with TCG cards, sports cards, and other collectible cards, including Pokémon, One Piece, Yu-Gi-Oh!, Lorcana, Magic: The Gathering, baseball, basketball, football, and more. Why Centering Matters: Centering plays a major role in determining a card's grade from professional grading companies. Even if a card is otherwise in excellent condition, poor centering can reduce its grade and impact its value. Card Centering Calculator helps you measure centering ratios before submitting cards for grading, giving you more information when deciding which cards to grade, sell, trade, or keep raw. Note: Card Centering Calculator focuses on measuring centering ratios. Professional grading companies such as PSA, BGS, CGC, SGC, TAG, and ACE also evaluate other factors, including corners, edges, surface wear, scratches, dents, print quality, and overall condition. This app does not assess those additional grading criteria.

About

MintCollect

Manage your trading card collection with real-time market data and pricing. Track purchases, sales, and portfolio value to make informed decisions. Access a comprehensive database for singles, sealed products, and graded cards.

Highlights
  • Comprehensive card and product search
  • Real-time market values and historical prices
  • Track purchases, sales, and portfolio value
  • Monitor profits, losses, and financial trends
  • Create and share custom lists
  • Insights across grading tiers
Features
Read full description

Stay on top of your TCG collection and market trends with the most accurate and up-to-date data available. Our platform is designed to help collectors and investors gain full transparency in the hobby while providing the tools needed to make informed decisions. • Comprehensive Card & Product Search Instantly find the latest market values and historical price data for singles, sealed products, and graded cards. Our expanding database covers English and Japanese releases, with pricing sourced from top marketplaces like eBay, TCGPlayer, CardMarket, and auction houses. Get insights across grading tiers, including raw cards, PSA, and CGC. • Track Purchases, Sales & Portfolio Value Keep a real-time log of your acquisitions and sales to understand the true worth of your collection. Monitor profits, losses, and financial trends with intuitive portfolio tools. Create and share custom lists to stay organized for trade nights, investments, and set completions. For collectors looking to dive deeper, premium tools and analytics provide advanced insights to help you stay ahead of the market. ----- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Card Centering Calculator4 screens
MintCollect4 screens

Verdict

The call

The clearest difference is rating: Card Centering Calculator at 4.7 against MintCollect's 3.9. Card Centering Calculator also leads on ratings volume (2.6K vs 47). MintCollect's advantage is update cadence (weekly vs monthly) and monetization model (ad-supported vs free with in-app purchases). On price, review sentiment, ads and in-app purchases 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 5 one-off in-app purchases and MintCollect sells 9 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

Card Centering Calculator holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Card Centering Calculator has 2.6K ratings behind it against 47, so its average is the more settled of the two. Written reviews point the same way: 60% of Card Centering Calculator's written reviews are positive against 56% of MintCollect's.

UpkeepUpdate frequency

Card Centering Calculator ships an update monthly, MintCollect weekly. Both last shipped on October 30, 2026.

Scorecard5 real differences · 5 level
Card Centering Calculator versus MintCollect: the parameters behind the verdict, then further details
ParameterCard Centering CalculatorMintCollect
PriceFreeFree
Rating4.7 (2.6K ratings) — better3.9 (47 ratings)
Positive reviews60.0% of reviews — better55.6% of reviews
Number of ratings2.6K — better47
Update frequencyMonthlyWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size21 MB70 MB
Age rating4+4+
DeveloperJade Lizard Software LLCTushar Morabkar

Customer experience

Card Centering Calculator

All ratings2,459 ratings
Positive93.4%
Neutral1.2%
Negative5.4%
Written reviews135 reviews
Positive60.0%
Neutral2.2%
Negative37.8%

MintCollect

All ratings47 ratings
Positive68.1%
Neutral12.8%
Negative19.1%
Written reviews45 reviews
Positive55.6%
Neutral17.8%
Negative26.7%

User reviews

Card Centering Calculator

From 2.6K App Store ratings

What we love

  • 👍 Intuitive and flexible
  • 🚀 Provides great information on centering
  • 💡 Helpful for graders and collectors
  • 👍 Easy to use and user-friendly
  • 👍 Accurate and works as a physical tool

Room to improve

  • 🐛 Centering measurement doesn't work properly
  • 🔒 Grading information locked behind paywall
  • 🐛 Camera quality issues, app resets during use

MintCollect

From 47 App Store ratings

What we love

  • 👍 Easy to use
  • 👍 Great information
  • 👍 Smooth experience
  • 👍 User-friendly
  • 👍 Customizable folders

Bugs and requests

Card Centering Calculator

Reported bugs

2 issues
  • Centering measurement resets during use
  • Image rotation doesn't stay in place

Requested features

2 requests
  • Thinner and dashed centering lines for better visibility
  • Free access to grading information without subscription

MintCollect

No bugs or feature requests surfaced in reviews.

In-app purchases

5 purchases

Card Centering Calculator

One-time5
  • Small Tip$0.99
  • Medium Tip$1.99
  • Unlock Premium$4.99
Show 2 more
  • Large Tip$4.99
  • Pristine Tip$9.99
9 purchases

MintCollect

Subscriptions9
  • Plus7 Days trial$2.991 Month
  • Pro7 Days trial2 variants$7.991 Month
  • Pro7 Days trial$11.991 Month
Show 6 more
  • Pro7 Days trial$14.991 Month
  • Pro$24.991 Year
  • Pro$59.991 Year
  • Pro7 Days trial$59.991 Year
  • Pro7 Days trial$89.991 Year
  • Pro7 Days trial$119.991 Year

Questions

Is Card Centering Calculator free?
Card Centering Calculator is free to download, with in-app purchases available.
Is MintCollect free?
MintCollect is free to download, with in-app purchases available.
Which has better reviews, Card Centering Calculator or MintCollect?
Card Centering Calculator is rated higher. Card Centering Calculator averages 4.7 out of 5 from 2.6K ratings, while MintCollect averages 3.9 from 47 ratings.
Do Card Centering Calculator or MintCollect have ads?
Both Card Centering Calculator and MintCollect show ads.
Which is updated more often, Card Centering Calculator or MintCollect?
Card Centering Calculator ships an update monthly, and MintCollect weekly. Most recently, Card Centering Calculator was updated on October 30, 2026 and MintCollect on October 30, 2026.

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