# Card Centering & Grading Tool vs 巧掌櫃三代 POS

The clearest difference is in-app purchases: 巧掌櫃三代 POS at none against Card Centering & Grading Tool's 4. 巧掌櫃三代 POS also leads on update cadence (every 4 days vs monthly) and iOS requirement (16.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Card Centering & Grading Tool sells 4 in-app purchases, starting at $3.99 per 7 days. 巧掌櫃三代 POS asks for nothing beyond the download.

Card Centering & Grading Tool ships an update monthly, 巧掌櫃三代 POS every 4 days. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Card Centering & Grading Tool | 巧掌櫃三代 POS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (13 ratings)](https://appshunter.io/ios/app/card-centering-and-grading-tool/id6751225884/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 16 MB | 53 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WarthogLab](https://appshunter.io/developer/890415554) | [cyberstar](https://appshunter.io/developer/640454311) |

## What reviewers say

### Card Centering & Grading Tool

[App page](https://appshunter.io/ios/app/card-centering-and-grading-tool/id6751225884)

This app uses AI and manual tools to precisely evaluate trading and sports cards for professional grading standards. It calculates centering ratios and predicts potential scores from top grading companies, supporting various card types like Pokémon, Magic: The Gathering, and sports cards.

**Highlights:** AI-powered centering analysis, Manual precision measurement tools, Grading company score prediction, Front and back centering evaluation, Universal card type support, Customizable detection settings

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gradeon Weekly Pro | $3.99 | per 7 days |
| Gradeon Weekly Pro | $3.99 | per 7 days |
| Gradeon Annual Pro | $19.99 | per year |
| Gradeon Annual Pro | $19.99 | per year |


### 巧掌櫃三代 POS

[App page](https://appshunter.io/ios/app/pos/id6772736899)

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

**In-app purchases:** none


## Frequently asked questions

### Is Card Centering & Grading Tool free?

Card Centering & Grading Tool is free to download, with in-app purchases available.

### Is 巧掌櫃三代 POS free?

巧掌櫃三代 POS is free to download, with no in-app purchases.

### Do Card Centering & Grading Tool or 巧掌櫃三代 POS have ads?

Neither Card Centering & Grading Tool nor 巧掌櫃三代 POS shows ads.

### Which is updated more often, Card Centering & Grading Tool or 巧掌櫃三代 POS?

Card Centering & Grading Tool ships an update monthly, and 巧掌櫃三代 POS every 4 days. Most recently, Card Centering & Grading Tool was updated on October 22, 2026 and 巧掌櫃三代 POS on October 14, 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.*