# Card Centering Calculator vs Centering50

Card Centering Calculator and Centering50 both sit at 4.7 stars, but that hides the real split: 60% of Card Centering Calculator's written reviews are positive against 0% of Centering50's. Card Centering Calculator also leads on ratings volume (2.6K vs 50). Centering50's advantage is update cadence (every 8 days vs monthly) and iOS requirement (16.2 vs 18.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Card Centering Calculator sells 5 one-off in-app purchases and Centering50 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Card Centering Calculator against 4.6 for Centering50. That said, the two scores are not equally well evidenced: Card Centering Calculator has 2.6K ratings behind it against 50, so its average is the more settled of the two. Written reviews are what separate them: 60% of Card Centering Calculator's written reviews are positive against 0% of Centering50's.

Card Centering Calculator ships an update monthly, Centering50 every 8 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Card Centering Calculator | Centering50 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.6K ratings)](https://appshunter.io/ios/app/card-centering-calculator/id6661022837/reviews)** | [4.6 (50 ratings)](https://appshunter.io/ios/app/centering50-card-grading-tool/id6759667301/reviews) |
| Number of ratings | **2.6K** | 50 |
| Positive reviews | **60.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 155 MB |
| Requires iOS | 18.0 | **16.2** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Jade Lizard Software LLC](https://appshunter.io/developer/528029155) | [FUK WAI LI](https://appshunter.io/developer/1880074668) |

## What reviewers say

### Card Centering Calculator

[App page](https://appshunter.io/ios/app/card-centering-calculator/id6661022837)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Unlock Premium | $4.99 | one-time |
| Large Tip | $4.99 | one-time |
| Pristine Tip | $9.99 | one-time |

**What reviewers like**

- 👍 Intuitive and flexible
- 🚀 Provides great information on centering
- 💡 Helpful for graders and collectors
- 👍 Easy to use and user-friendly
- 👍 Accurate and works as a physical tool

**What reviewers complain about**

- 🐛 Centering measurement doesn't work properly
- 🔒 Grading information locked behind paywall
- 🐛 Camera quality issues, app resets during use

**Reported bugs**

- Centering measurement resets during use
- Image rotation doesn't stay in place

**Requested features**

- Thinner and dashed centering lines for better visibility
- Free access to grading information without subscription


### Centering50

[App page](https://appshunter.io/ios/app/centering50-card-grading-tool/id6759667301)

This tool helps collectors accurately measure card centering ratios for TCG and sports cards. It uses AI-assisted scanning and manual guides to provide precise measurements, helping users predict grades and save on submission fees.

**Highlights:** AI-assisted border detection, Manual measurement guides, Front and back analysis, 15x precision zoom, Grading standard library, Dynamic contrast adjustment

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly | $4.99 | per month |
| Unlimited Yearly | $24.99 | per year |
| Full Version Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is Card Centering Calculator free?

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

### Is Centering50 free?

Centering50 is free to download, with in-app purchases available.

### Which has better reviews, Card Centering Calculator or Centering50?

Card Centering Calculator is rated higher. Card Centering Calculator averages 4.7 out of 5 from 2.6K ratings, while Centering50 averages 4.6 from 50 ratings.

### Do Card Centering Calculator or Centering50 have ads?

Both Card Centering Calculator and Centering50 show ads.

### Which is updated more often, Card Centering Calculator or Centering50?

Card Centering Calculator ships an update monthly, and Centering50 every 8 days. Most recently, Card Centering Calculator was updated on November 4, 2026 and Centering50 on November 5, 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.*