Comparison

Card Centering Calculator vs CardParser

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

CardParser

This app helps trading card collectors and vendors organize their collections and inventory. It offers fast and accurate card scanning, real-time pricing, and tools for managing collections or show inventory. Users can switch between collector and vendor modes seamlessly.

Highlights
  • Instant card scanning with 99% accuracy
  • Daily market pricing for raw and graded cards
  • Collector and Vendor modes for separate management
  • Printable labels and snapshots for pricing
  • Historical pricing charts
  • Card show integration for inventory browsing and giveaways
Features
Read full description

CardParser is the all-in-one toolkit for trading card collectors and vendors. Scan your cards, track what they're worth, and keep your collection or your show inventory organized in one place. SCAN IN SECONDS Point your camera at a card and CardParser identifies it instantly. 99% accuracy and blazing fast. PRINT LABELS AND SNAPSHOTS Print labels for your entire collection. Save hours re-pricing cards through label snapshots, which let you print only movers and newcomer labels. CardParser notifies vendors when they need to print a new label. COLLECTOR MODE Every vendor is a collector, and visa versa. Collector Mode lets you track your collections, sets, binders, and more, from the same pricing engine as Vendor Mode. Switch between modes anytime, so your personal collection and your business inventory stay separate. DAILY MARKET PRICING, RAW AND GRADED Prices update daily for both raw and graded cards, with historical charts. Price with confidence. BUILT WITH CARD SHOWS CardParser partners with card shows to bring new experiences to vendors and collectors. At participating shows, collectors can scan a QR code to browse vendor inventory and find the cards they're hunting across the whole floor, and join live mid-show giveaways. Vendors get tools to showcase their inventory to buyers before and during the show. FREE, WITH MORE TO COME We are constantly building out CardParser, and are committed to being free. CardParser is an independent product of Trove Collectibles LLC and is not affiliated with, endorsed, sponsored, or approved by Nintendo, The Pokémon Company, Creatures Inc., GAME FREAK, PSA, CGC, Beckett, or TCGplayer. All trademarks belong to their respective owners.

Screenshots

Card Centering Calculator4 screens
CardParser4 screens

Verdict

The call

The clearest difference is review sentiment: CardParser at 100% against Card Centering Calculator's 60%. CardParser also leads on in-app purchases (none vs 5) and ads (none vs shown). Card Centering Calculator's advantage is ratings volume (2.6K vs 18). On price and device support 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. CardParser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CardParser holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Card Centering Calculator has 2.6K ratings behind it against 18, 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 100% of CardParser's.

UpkeepUpdate frequency

Card Centering Calculator ships an update monthly, CardParser weekly. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

Scorecard8 real differences · 2 level
Card Centering Calculator versus CardParser: the parameters behind the verdict, then further details
ParameterCard Centering CalculatorCardParser
PriceFreeFree
Rating4.7 (2.6K ratings)5.0 (18 ratings) — better
Positive reviews60.0% of reviews100.0% of reviews — better
Number of ratings2.6K — better18
Update frequencyMonthlyWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size21 MB79 MB
Age rating4+4+
DeveloperJade Lizard Software LLCWilliam Wang

Customer experience

Card Centering Calculator

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

CardParser

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

CardParser

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
None

CardParser

No in-app purchases

Questions

Is Card Centering Calculator free?
Card Centering Calculator is free to download, with in-app purchases available.
Is CardParser free?
CardParser is free to download, with no in-app purchases.
Which has better reviews, Card Centering Calculator or CardParser?
CardParser is rated higher. Card Centering Calculator averages 4.7 out of 5 from 2.6K ratings, while CardParser averages 5.0 from 18 ratings.
Do Card Centering Calculator or CardParser have ads?
Card Centering Calculator shows ads; CardParser does not.
Which is updated more often, Card Centering Calculator or CardParser?
Card Centering Calculator ships an update monthly, and CardParser weekly. Most recently, Card Centering Calculator was updated on November 8, 2026 and CardParser on November 10, 2026.

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