# Card Grading Tool vs Card Centering Calculator

The clearest difference is in-app purchases: Card Grading Tool at none against Card Centering Calculator's 2. Card Centering Calculator's advantage is ads (none vs shown) and review sentiment (33% vs 0%). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Card Centering Calculator sells 2 in-app purchases, starting at $2.99 per 7 days. Card Grading Tool asks for nothing beyond the download.

Card Grading Tool ships an update every 2 months, Card Centering Calculator every 2 weeks. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Card Grading Tool | Card Centering Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (59 ratings)](https://appshunter.io/ios/app/card-centering-calculator-ccc/id6745336791/reviews)** |
| Number of ratings | — | **59** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 108 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Computing & Dreams BVBA](https://appshunter.io/developer/1016296633) | [Arda Sen](https://appshunter.io/developer/1670665250) |

## What reviewers say

### Card Grading Tool

[App page](https://appshunter.io/ios/app/card-grading-tool/id6739850958)

Analyze and measure the centering of your trading cards with precision tools. This app helps collectors determine grading potential and share results, supporting various card types.

**Highlights:** Accurate centering measurements, User-friendly interface, Customizable tools, Built-in ratio table, Save and share graded cards, Offline access

**In-app purchases:** none


### Card Centering Calculator

[App page](https://appshunter.io/ios/app/card-centering-calculator-ccc/id6745336791)

This app helps trading card collectors accurately measure card centering for professional grading. It offers automatic border detection with manual adjustments, clear measurement results, and the ability to compare potential grades across major companies. Save and manage your analyzed cards to stop guessing and start measuring.

**Highlights:** Accurate centering measurements, Automatic border detection, Manual guide adjustments, Compare potential grades, Save and manage analyzed cards, Image import via camera or photos

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Yearly Subscription | $19.99 | per year |


## Frequently asked questions

### Is Card Grading Tool free?

Card Grading Tool is free to download, with no in-app purchases.

### Is Card Centering Calculator free?

Card Centering Calculator is free to download, with in-app purchases available.

### Do Card Grading Tool or Card Centering Calculator have ads?

Card Grading Tool shows ads; Card Centering Calculator does not.

### Which is updated more often, Card Grading Tool or Card Centering Calculator?

Card Grading Tool ships an update every 2 months, and Card Centering Calculator every 2 weeks. Most recently, Card Grading Tool was updated on October 4, 2026 and Card Centering Calculator on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*