# Centering Check vs FR Queue Optimizer

The clearest difference is in-app purchases: FR Queue Optimizer at none against Centering Check's 3. FR Queue Optimizer also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Centering Check sells 3 in-app purchases, starting at $3.99 per month. FR Queue Optimizer asks for nothing beyond the download.

Centering Check ships an update every 2 weeks, FR Queue Optimizer every 4 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Centering Check | FR Queue Optimizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (51 ratings)](https://appshunter.io/ios/app/centering-check-tcg-card-tool/id6760215858/reviews)** | — |
| Number of ratings | **51** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 10 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Giosue Castellano](https://appshunter.io/developer/1883290378) | [Francisco Montenegro](https://appshunter.io/developer/6787830196) |

## What reviewers say

### Centering Check

[App page](https://appshunter.io/ios/app/centering-check-tcg-card-tool/id6760215858)

This tool uses AI to accurately measure the centering of trading cards from photos or screenshots. It provides instant grade estimates for major grading companies and allows for manual adjustments and sharing of results. Evaluate online listings and your own collection with confidence.

**Highlights:** AI-powered image correction for accurate centering, Instant grade estimates for PSA, BGS, CGC, TAG, Manual border adjustment for precise measurements, Editable history of all scanned cards, Front and back centering calculations, Shareable images with centering data, Grading standards reference guide

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Centering Check PRO | $3.99 | per month |
| Yearly Centering Check PRO | $39.99 | per year |
| Lifetime Subscription PRO | $99.99 | one-time |


### FR Queue Optimizer

[App page](https://appshunter.io/ios/app/fr-queue-optimizer/id6787830194)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Centering Check free?

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

### Is FR Queue Optimizer free?

FR Queue Optimizer is free to download, with no in-app purchases.

### Do Centering Check or FR Queue Optimizer have ads?

Neither Centering Check nor FR Queue Optimizer shows ads.

### Which is updated more often, Centering Check or FR Queue Optimizer?

Centering Check ships an update every 2 weeks, and FR Queue Optimizer every 4 days. Most recently, Centering Check was updated on October 21, 2026 and FR Queue Optimizer on October 10, 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.*