Comparison

Card Centering Calculator vs Centering50

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

Centering50

This tool helps collectors accurately measure card centering ratios for TCG and sports cards. It uses AI-assisted scanning and manual guides to provide precise measurements, helping users predict grades and save on submission fees.

Highlights
  • AI-assisted border detection
  • Manual measurement guides
  • Front and back analysis
  • 15x precision zoom
  • Grading standard library
  • Dynamic contrast adjustment
Features
Read full description

Centering50: TCG & Sports Card Grading Tool Stop guessing and start grading with confidence. Whether you are a hardcore Pokémon TCG investor, a sports card flipper, or a casual collector, centering is the #1 reason cards fail to hit a Gem Mint 10. Centering50 is the professional-grade scanner designed to help you predict your grade before you spend a cent on submission fees. WHY CENTERING MATTERS In the modern hobby, the price gap between a PSA 9 and a PSA 10 can be thousands of dollars. Professional graders at PSA, BGS, SGC, CGC, and TAG use digital precision to measure border ratios. If your card is even 2% off, you lose the Gem Mint dream. Centering50 brings that same laboratory precision to your smartphone. PRECISION FEATURES FOR COLLECTORS: "Smart-Snap AI: Our algorithm helps you detect card borders for lightning-fast scanning of modern Pokémon, Magic: The Gathering (MTG), Lorcana, and One Piece cards. Save time with AI-assisted alignment, then fine-tune for 0.1% precision." Auto-Straighten Technology: Don't worry about perfect alignment. Scan at any angle and the app will instantly fix the tilt. The "Magenta Line" Manual Mode: For vintage cards or thick-bordered sports cards (Topps, Panini, Upper Deck), use our high-contrast measurement guides to set your own anchor points with 0.1% accuracy. Grading Standard Library: Instantly compare your results against the official 2026 standards: PSA: 55/45 Front (New 2025 Standard) BGS: 50/50 for Black Label eligibility SGC & CGC: Real-time centering thresholds Front & Back Analysis: Don't get rejected for a 90/10 back! Measure both sides independently to ensure your submission is truly "Perfect." 15x Precision Zoom: Perfectly align your guides on thin silver or gold borders with our enhanced magnification tool. SAVE MONEY ON SUBMISSION FEES Sending cards to be graded is expensive. Why pay for a "Near Mint 7" when you could have known the result at home? Use Centering50 to filter your collection and only send your strongest candidates. It’s the ultimate pre-grading utility for: Pokémon TCG (English & Japanese) Sports Cards (Basketball, Baseball, Football, Soccer) Disney Lorcana & One Piece TCG Yu-Gi-Oh! & Magic: The Gathering DESIGNED FOR THE 2026 HOBBYIST We know you’re scanning in different lighting. Our app features Dynamic Contrast Adjustment and Skew Correction, so even if your photo is slightly tilted, our math remains perfect. HOW TO USE: Place your card on a high-contrast, flat surface (no sleeves for best results). Take a photo directly from above. (with the green bubble in center) Align the Centering50 guides with the card edges and the internal art border. (Optionally: Unlock the image and move/resize/rotate) Get your LR (Left/Right) and TB (Top/Bottom) ratios instantly. JOIN THE 50/50 CLUB Centering50 isn't just a calculator; it’s your secret weapon in the grading game. Download now and take the guesswork out of your collection. Note: Centering50 provides a highly accurate estimate based on physical centering. Final grades are determined by professional grading companies based on additional factors like surface, corners, and edges. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Card Centering Calculator4 screens
Centering503 screens

Verdict

The call

Card Centering Calculator and Centering50 both sit at 4.7 stars, but that hides the real split: 60% of Card Centering Calculator's written reviews are positive against 0% of Centering50's. Card Centering Calculator also leads on ratings volume (2.6K vs 50). Centering50's advantage is update cadence (every 8 days vs monthly) and iOS requirement (16.2 vs 18.0). On price, rating, 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 Centering50 sells 3 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

On the App Store both sit at effectively the same score — 4.7 for Card Centering Calculator against 4.6 for Centering50. That said, the two scores are not equally well evidenced: Card Centering Calculator has 2.6K ratings behind it against 50, so its average is the more settled of the two. Written reviews are what separate them: 60% of Card Centering Calculator's written reviews are positive against 0% of Centering50's.

UpkeepUpdate frequency

Card Centering Calculator ships an update monthly, Centering50 every 8 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Card Centering Calculator versus Centering50: the parameters behind the verdict, then further details
ParameterCard Centering CalculatorCentering50
PriceFreeFree
Rating4.7 (2.6K ratings) — better4.6 (50 ratings)
Positive reviews60.0% of reviews — better0.0% of reviews
Number of ratings2.6K — better50
Update frequencyMonthlyEvery 8 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.2 — better
Further details — not scored
Size21 MB155 MB
Age rating4+17+
DeveloperJade Lizard Software LLCFUK WAI LI

Customer experience

Card Centering Calculator

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

Centering50

All ratings50 ratings
Positive92.0%
Neutral0.0%
Negative8.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Centering50

Not enough reviews yet to summarise bugs or requests.

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
3 purchases

Centering50

Subscriptions2
  • Unlimited Monthly$4.991 Month
  • Unlimited Yearly$24.991 Year
One-time1
  • Full Version Lifetime Access$49.99

Questions

Is Card Centering Calculator free?
Card Centering Calculator is free to download, with in-app purchases available.
Is Centering50 free?
Centering50 is free to download, with in-app purchases available.
Which has better reviews, Card Centering Calculator or Centering50?
Card Centering Calculator is rated higher. Card Centering Calculator averages 4.7 out of 5 from 2.6K ratings, while Centering50 averages 4.6 from 50 ratings.
Do Card Centering Calculator or Centering50 have ads?
Both Card Centering Calculator and Centering50 show ads.
Which is updated more often, Card Centering Calculator or Centering50?
Card Centering Calculator ships an update monthly, and Centering50 every 8 days. Most recently, Card Centering Calculator was updated on November 4, 2026 and Centering50 on November 5, 2026.

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