Comparison

Card Centering Calculator vs CorePrint

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

CorePrint

This app enables wireless, ink-free printing from your smartphone to a compatible thermal printer. Easily print labels, notes, photos, and custom designs with a user-friendly interface and customizable options.

Highlights
  • Bluetooth connectivity
  • Ink-free printing
  • Wireless printing
  • Customizable prints
  • Intuitive interface
  • Template and font options
Features
Read full description

Meet CorePrint, the official companion app for your Core Innovations Thermal Printer. Say goodbye to messy ink cartridges, tangled cords, and complicated setups. CorePrint connects via Bluetooth, giving you a fast, wireless, and ink-free printing experience anytime, anywhere. Whether you’re printing labels for organization, notes for work or school, fun photos, or personalized designs, CorePrint makes it quick and easy. With just a tap, your ideas come to life directly from your smartphone. The app features a seamless setup process, a clean and intuitive interface, and reliable performance to meet your daily printing needs. CorePrint is designed for convenience and creativity on the go. It’s perfect for students, small business owners, crafters, or anyone who needs quick and efficient mobile printing. You can even customize your prints with a variety of templates, fonts, and layout options built right into the app. Download CorePrint today and discover the simplest way to print from your phone. No wires. No ink. Just print, wherever you are.

Screenshots

Card Centering Calculator4 screens
CorePrint4 screens

Verdict

The call

The clearest difference is in-app purchases: CorePrint at none against Card Centering Calculator's 5. CorePrint also leads on ads (none vs shown) and iOS requirement (11.0 vs 18.0). Card Centering Calculator's advantage is review sentiment (60% vs 40%). On price, rating, ratings volume and update cadence 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. CorePrint asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Card Centering Calculator holds the better App Store score, 4.7 against 4.6. Both are backed by a comparable volume of ratings — 2.5K and 2.3K respectively. Written reviews point the same way: 60% of Card Centering Calculator's written reviews are positive against 40% of CorePrint's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
Card Centering Calculator versus CorePrint: the parameters behind the verdict, then further details
ParameterCard Centering CalculatorCorePrint
PriceFreeFree
Rating4.7 (2.5K ratings) — better4.6 (2.3K ratings)
Positive reviews60.3% of reviews — better40.4% of reviews
Number of ratings2.5K — better2.3K
Update frequencyMonthlyMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.011.0 — better
Further details — not scored
Size21 MB176 MB
Age rating4+4+
DeveloperJade Lizard Software LLCSOBETTER BINH DUONG TRADINGMANUFACTURE COMPANY LIMITED

Customer experience

Card Centering Calculator

All ratings2,459 ratings
Positive93.4%
Neutral1.2%
Negative5.4%
Written reviews131 reviews
Positive60.3%
Neutral2.3%
Negative37.4%

CorePrint

All ratings1,673 ratings
Positive87.9%
Neutral1.9%
Negative10.3%
Written reviews89 reviews
Positive40.4%
Neutral12.4%
Negative47.2%

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

CorePrint

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

CorePrint

No in-app purchases

Questions

Is Card Centering Calculator free?
Card Centering Calculator is free to download, with in-app purchases available.
Is CorePrint free?
CorePrint is free to download, with no in-app purchases.
Which has better reviews, Card Centering Calculator or CorePrint?
Card Centering Calculator is rated higher. Card Centering Calculator averages 4.7 out of 5 from 2.5K ratings, while CorePrint averages 4.6 from 2.3K ratings.
Do Card Centering Calculator or CorePrint have ads?
Card Centering Calculator shows ads; CorePrint does not.
Which is updated more often, Card Centering Calculator or CorePrint?
Card Centering Calculator ships an update monthly, and CorePrint monthly. Most recently, Card Centering Calculator was updated on October 22, 2026 and CorePrint on October 21, 2026.

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