Comparison

Card Centering Calculator vs PokeMachine

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

PokeMachine

Instantly locate official Pokémon TCG vending machines across the United States. Discover machines at major retailers, get directions, and track restocks with community-powered updates. Save your favorite locations to never miss a restock.

Highlights
  • Interactive map of vending machine locations
  • Search by city, state, zip, or retailer
  • Get directions to machines
  • Track recent restocks
  • Community-powered stock reports
  • Save favorite machines
Features
Read full description

Find Pokémon TCG vending machines near you instantly. PokeMachine maps every official Pokémon card vending machine across the United States — over 1,600 locations at Kroger, Safeway, H-E-B, Fred Meyer, and more. FIND MACHINES • Interactive map with all vending machine locations • Search by city, state, zip code, or retailer • Get directions to any machine with one tap TRACK RESTOCKS • See which machines were recently restocked • Community-powered stock reports updated in real time • Report stock status to help other collectors NEVER MISS A RESTOCK • Save your favorite machines for quick access • Check restock history before you drive No account needed. No ads. No data collection.

Screenshots

Card Centering Calculator4 screens
PokeMachine3 screens

Verdict

The call

The clearest difference is review sentiment: Card Centering Calculator at 60% against PokeMachine's 0%. Card Centering Calculator also leads on price (Free vs $2.99) and rating (4.7 vs 1.7). PokeMachine's advantage is in-app purchases (none vs 5) and ads (none vs shown). On update cadence, device support and iOS requirement 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

Card Centering Calculator is free to download; PokeMachine costs $2.99 up front. Card Centering Calculator sells 5 one-off in-app purchases. PokeMachine asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Card Centering Calculator holds the better App Store score, 4.7 against 1.7. That said, the two scores are not equally well evidenced: Card Centering Calculator has 2.6K ratings behind it against 6, 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 0% of PokeMachine's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
Card Centering Calculator versus PokeMachine: the parameters behind the verdict, then further details
ParameterCard Centering CalculatorPokeMachine
PriceFree — better$2.99
Rating4.7 (2.6K ratings) — better1.7 (6 ratings)
Positive reviews60.0% of reviews — better0.0% of reviews
Number of ratings2.6K — better6
Update frequencyMonthlyMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size21 MB4 MB
Age rating4++4
DeveloperJade Lizard Software LLCKristian Fagerlie

Customer experience

Card Centering Calculator

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

PokeMachine

All ratings6 ratings
Positive0.0%
Neutral16.7%
Negative83.3%
Written reviews2 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

PokeMachine

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

PokeMachine

No in-app purchases

Questions

Is Card Centering Calculator free?
Card Centering Calculator is free to download, with in-app purchases available.
Is PokeMachine free?
PokeMachine costs $2.99, with no in-app purchases.
Which has better reviews, Card Centering Calculator or PokeMachine?
Card Centering Calculator is rated higher. Card Centering Calculator averages 4.7 out of 5 from 2.6K ratings, while PokeMachine averages 1.7 from 6 ratings.
Do Card Centering Calculator or PokeMachine have ads?
Card Centering Calculator shows ads; PokeMachine does not.
Which is updated more often, Card Centering Calculator or PokeMachine?
Card Centering Calculator ships an update monthly, and PokeMachine monthly. Most recently, Card Centering Calculator was updated on November 8, 2026 and PokeMachine on November 5, 2026.

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