# Centering Check vs keepbin

The clearest difference is review sentiment: keepbin at 100% against Centering Check's 0%. keepbin also leads on in-app purchases (none vs 3) and rating (5.0 vs 4.6). Centering Check's advantage is ratings volume (51 vs 2) and device support (3 vs 1). On price, update cadence, ads 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. keepbin asks for nothing beyond the download.

keepbin holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Centering Check has 51 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Centering Check's written reviews are positive against 100% of keepbin's.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Centering Check | keepbin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (51 ratings)](https://appshunter.io/ios/app/centering-check-tcg-card-tool/id6760215858/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/keepbin/id6803345853/reviews)** |
| Number of ratings | **51** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 47 MB | 40 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Giosue Castellano](https://appshunter.io/developer/1883290378) | [Juan Martin](https://appshunter.io/developer/6801689064) |

## 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 |


### keepbin

[App page](https://appshunter.io/ios/app/keepbin/id6803345853)

This app helps you declutter your photo library by presenting one image at a time for you to keep or delete. It prioritizes videos for maximum space recovery and ensures your photos never leave your device. All deletions are final only after your explicit confirmation.

**Highlights:** Random photo presentation, Swipe to keep or delete, Bin for recoverable deletions, Prioritizes video deletion, Offline functionality, No cloud upload, One-time deletion confirmation

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

**In-app purchases:** none


## Frequently asked questions

### Is Centering Check free?

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

### Is keepbin free?

keepbin is free to download, with no in-app purchases.

### Which has better reviews, Centering Check or keepbin?

keepbin is rated higher. Centering Check averages 4.6 out of 5 from 51 ratings, while keepbin averages 5.0 from 2 ratings.

### Do Centering Check or keepbin have ads?

Neither Centering Check nor keepbin shows ads.

### Which is updated more often, Centering Check or keepbin?

Centering Check ships an update every 2 weeks, and keepbin every 2 weeks. Most recently, Centering Check was updated on October 21, 2026 and keepbin on October 3, 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.*