---
title: "Card Centering Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
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, footb"
---

# Card Centering Calculator — United States
> TCG & Sports Card Grading Tool

![Card Centering Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/75/01/be/7501bed2-aeb0-7d41-5ec9-52270a225030/glass-icon-0-0-1x_U007epad-0-0-0-1-0-sRGB-85-220.png/400x400bb.png)

**Developer:** [Jade Lizard Software](https://apptail.io/developer/jade-lizard-software-PWH) (United States)
**Category:** Utilities
**Rating:** 4.7/5 (2,462 ratings)
**Price:** Free
**Bundle ID:** com.jadelizardsoftware.Card-Centering-Calculator
**Store:** Apple App Store
**Country:** United States
**Version:** 2.1 (released 2026-10-07)
**Original Release:** 2024-09-17

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6661022837)
**AppTail Page:** [https://apptail.io/app/card-centering-calculator-hwtt/united-states](https://apptail.io/app/card-centering-calculator-hwtt/united-states)

## Card Centering Calculator 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.

## Card Centering Calculator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5f/4e/da/5f4edaaa-f8dc-ebc4-1538-d992d1b0b210/01.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4e/98/0f/4e980fc8-1062-05cf-0064-763b706d14e9/02.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/70/35/75/703575f6-974e-587a-c582-242b686c9b2b/03.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/60/9f/09/609f099d-a29a-7df7-a7ae-ed456243d155/04.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e2/1d/6d/e21d6deb-61e8-326e-f39d-f09d3c431d66/05.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4a/b5/af/4ab5af12-32fb-7d70-28bb-4246c3512cad/06.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3f/fd/45/3ffd454f-ffb0-6641-52a3-e955c7025955/07.png/1320x2868.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/04/b8/be/04b8be47-5b01-3c31-1630-fe0520528263/08.png/1320x2868.png)

## Card Centering Calculator Rating Breakdown in United States
- 5 stars: 2,184 (89%)
- 4 stars: 117 (5%)
- 3 stars: 30 (1%)
- 2 stars: 20 (1%)
- 1 stars: 111 (5%)

## Card Centering Calculator Reviews in United States

### ****- "Good, but."
I really love this app to help me grade edges but I don’t like having to pay a subscription to see what like PSA would grade it. That’s why it’s a four star.
-- Sngdkhfk, 2025-01-15

### ***** "Well It’s About Time!"
I’ve wondered when someone would do this and I’m so happy y’all did! This is exactly what collectors desperately needed to help improve grading scores! Pay for the Premium. Only $3.99 and worth so much more.
Love the app and look forward to what you will bring in the future!
-- Yeeman311, 2025-01-10

### ***** "Love it"
But how do you purchase the premium version I don’t see the option in the app only tip jar option. If u could direct me on how to obtain the premium I would love to purchase it thank you
-- hhr2009, 2025-01-08

### ***** "Best App, Best Dev"
The app is great. It’s simple, intuitive and very powerful. Paying for pro is worth it in my opinion. It has all the big time graders and it automatically updates the possible grade as you’re checking the centering. Even if you stick with the free version it’s really helpful and has a section for grading methodology. 

The dev is very responsive and quick with updates. One of the best app experiences I’ve had on iOS hands down. Will be recommending this app to all my fellow collectors.
-- Witecastle, 2025-01-07

### ***** "App seems promising"
From first glance, app seems easy enough to use.
-- Coach D 123, 2025-01-02

### ***** "Amazing."
Wish I would have known sooner. Bought the app after first try. I hope this company is working on something new. Can’t wait. 100% recommend.
-- Yesse 123, 2024-12-27

### ***** "Best pre grade tool i’ve ever seen"
As someone who buys a lot of raw cards to be PSA graded off Ebay and elsewhere, this app helps a ton if you have good photos. Compared to the physical centering tool, i’ve seen no difference and this app is more accurate on a finer scale. A must have for the slab collecting addicts.
-- Logan featherock, 2024-12-16

### ***** "Perfect Tool"
Super easy to use and for just a few bucks to upgrade to premium is so worth it. I’ve spent far more on less! Well done developers 👏🏼
-- Project10Collections, 2024-12-10

### ***** "Good app"
good app functions as advertised.
-- jflownasty, 2024-12-03

### ***** "Great App"
Great app, works as well as a physical centering tool
-- Random009, 2024-11-09

[View all Card Centering Calculator reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Card Centering Calculator Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Free | Netherlands | Utilities | #196 |
| Top Free | Sweden | Utilities | #196 |
| Top Free | Singapore | Utilities | #203 |
| Top Free | Kuwait | Utilities | #213 |



## Card Centering Calculator Available In
- [United States](https://apptail.io/app/card-centering-calculator-hwtt/united-states)
- [Japan](https://apptail.io/app/card-centering-calculator-hwtt/japan)
- [Hong Kong SAR China](https://apptail.io/app/card-centering-calculator-hwtt/hong-kong)
- [Canada](https://apptail.io/app/card-centering-calculator-hwtt/canada)
- [United Kingdom](https://apptail.io/app/card-centering-calculator-hwtt/united-kingdom)
- [Australia](https://apptail.io/app/card-centering-calculator-hwtt/australia)
- [Taiwan](https://apptail.io/app/card-centering-calculator-hwtt/taiwan)
- [Germany](https://apptail.io/app/card-centering-calculator-hwtt/germany)
- [Netherlands](https://apptail.io/app/card-centering-calculator-hwtt/netherlands)
- [China](https://apptail.io/app/card-centering-calculator-hwtt/china)
- [Singapore](https://apptail.io/app/card-centering-calculator-hwtt/singapore)
- [Thailand](https://apptail.io/app/card-centering-calculator-hwtt/thailand)
- [Italy](https://apptail.io/app/card-centering-calculator-hwtt/italy)
- [Malaysia](https://apptail.io/app/card-centering-calculator-hwtt/malaysia)
- [France](https://apptail.io/app/card-centering-calculator-hwtt/france)
- [Spain](https://apptail.io/app/card-centering-calculator-hwtt/spain)
- [Mexico](https://apptail.io/app/card-centering-calculator-hwtt/mexico)
- [Belgium](https://apptail.io/app/card-centering-calculator-hwtt/belgium)
- [South Korea](https://apptail.io/app/card-centering-calculator-hwtt/south-korea)
- [Denmark](https://apptail.io/app/card-centering-calculator-hwtt/denmark)
- [Czechia](https://apptail.io/app/card-centering-calculator-hwtt/czechia)
- [Norway](https://apptail.io/app/card-centering-calculator-hwtt/norway)
- [Vietnam](https://apptail.io/app/card-centering-calculator-hwtt/vietnam)
- [Philippines](https://apptail.io/app/card-centering-calculator-hwtt/philippines)
- [Macao SAR China](https://apptail.io/app/card-centering-calculator-hwtt/macau)
- [Indonesia](https://apptail.io/app/card-centering-calculator-hwtt/indonesia)
- [Sweden](https://apptail.io/app/card-centering-calculator-hwtt/sweden)
- [Switzerland](https://apptail.io/app/card-centering-calculator-hwtt/switzerland)
- [Romania](https://apptail.io/app/card-centering-calculator-hwtt/romania)
- [Poland](https://apptail.io/app/card-centering-calculator-hwtt/poland)
- [Brazil](https://apptail.io/app/card-centering-calculator-hwtt/brazil)
- [New Zealand](https://apptail.io/app/card-centering-calculator-hwtt/new-zealand)
- [Kuwait](https://apptail.io/app/card-centering-calculator-hwtt/kuwait)
- [Israel](https://apptail.io/app/card-centering-calculator-hwtt/israel)
- [Chile](https://apptail.io/app/card-centering-calculator-hwtt/chile)
- [Slovakia](https://apptail.io/app/card-centering-calculator-hwtt/slovakia)
- [Greece](https://apptail.io/app/card-centering-calculator-hwtt/greece)
- [Türkiye](https://apptail.io/app/card-centering-calculator-hwtt/turkey)
- [Austria](https://apptail.io/app/card-centering-calculator-hwtt/austria)
- [Portugal](https://apptail.io/app/card-centering-calculator-hwtt/portugal)
- [South Africa](https://apptail.io/app/card-centering-calculator-hwtt/south-africa)
- [Colombia](https://apptail.io/app/card-centering-calculator-hwtt/colombia)
- [Ecuador](https://apptail.io/app/card-centering-calculator-hwtt/ecuador)
- [Croatia](https://apptail.io/app/card-centering-calculator-hwtt/croatia)
- [Hungary](https://apptail.io/app/card-centering-calculator-hwtt/hungary)
- [Ireland](https://apptail.io/app/card-centering-calculator-hwtt/ireland)
- [India](https://apptail.io/app/card-centering-calculator-hwtt/india)
- [Mauritius](https://apptail.io/app/card-centering-calculator-hwtt/mauritius)
- [Ukraine](https://apptail.io/app/card-centering-calculator-hwtt/ukraine)
- [Luxembourg](https://apptail.io/app/card-centering-calculator-hwtt/luxembourg)
- [Latvia](https://apptail.io/app/card-centering-calculator-hwtt/latvia)
- [Madagascar](https://apptail.io/app/card-centering-calculator-hwtt/madagascar)
- [North Macedonia](https://apptail.io/app/card-centering-calculator-hwtt/north-macedonia)
- [Lebanon](https://apptail.io/app/card-centering-calculator-hwtt/lebanon)
- [Malta](https://apptail.io/app/card-centering-calculator-hwtt/malta)
- [Armenia](https://apptail.io/app/card-centering-calculator-hwtt/armenia)
- [Kazakhstan](https://apptail.io/app/card-centering-calculator-hwtt/kazakhstan)
- [Iceland](https://apptail.io/app/card-centering-calculator-hwtt/iceland)
- [Nigeria](https://apptail.io/app/card-centering-calculator-hwtt/nigeria)
- [Finland](https://apptail.io/app/card-centering-calculator-hwtt/finland)
- [Egypt](https://apptail.io/app/card-centering-calculator-hwtt/egypt)
- [Nepal](https://apptail.io/app/card-centering-calculator-hwtt/nepal)
- [Estonia](https://apptail.io/app/card-centering-calculator-hwtt/estonia)
- [Oman](https://apptail.io/app/card-centering-calculator-hwtt/oman)
- [Panama](https://apptail.io/app/card-centering-calculator-hwtt/panama)
- [Peru](https://apptail.io/app/card-centering-calculator-hwtt/peru)
- [Algeria](https://apptail.io/app/card-centering-calculator-hwtt/algeria)
- [Pakistan](https://apptail.io/app/card-centering-calculator-hwtt/pakistan)
- [Dominican Republic](https://apptail.io/app/card-centering-calculator-hwtt/dominican-republic)
- [Cyprus](https://apptail.io/app/card-centering-calculator-hwtt/cyprus)
- [Paraguay](https://apptail.io/app/card-centering-calculator-hwtt/paraguay)
- [Qatar](https://apptail.io/app/card-centering-calculator-hwtt/qatar)
- [Belize](https://apptail.io/app/card-centering-calculator-hwtt/belize)
- [Russia](https://apptail.io/app/card-centering-calculator-hwtt/russia)
- [Saudi Arabia](https://apptail.io/app/card-centering-calculator-hwtt/saudi-arabia)
- [Belarus](https://apptail.io/app/card-centering-calculator-hwtt/belarus)
- [Brunei](https://apptail.io/app/card-centering-calculator-hwtt/brunei)
- [Slovenia](https://apptail.io/app/card-centering-calculator-hwtt/slovenia)
- [Bermuda](https://apptail.io/app/card-centering-calculator-hwtt/bermuda)
- [Suriname](https://apptail.io/app/card-centering-calculator-hwtt/suriname)
- [Bahrain](https://apptail.io/app/card-centering-calculator-hwtt/bahrain)
- [Tunisia](https://apptail.io/app/card-centering-calculator-hwtt/tunisia)
- [Bulgaria](https://apptail.io/app/card-centering-calculator-hwtt/bulgaria)
- [Azerbaijan](https://apptail.io/app/card-centering-calculator-hwtt/azerbaijan)
- [United Arab Emirates](https://apptail.io/app/card-centering-calculator-hwtt/united-arab-emirates)
- [Argentina](https://apptail.io/app/card-centering-calculator-hwtt/argentina)
- [Uzbekistan](https://apptail.io/app/card-centering-calculator-hwtt/uzbekistan)
- [British Virgin Islands](https://apptail.io/app/card-centering-calculator-hwtt/british-virgin-islands)
- [Sri Lanka](https://apptail.io/app/card-centering-calculator-hwtt/sri-lanka)
- [Lithuania](https://apptail.io/app/card-centering-calculator-hwtt/lithuania)

---

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