# ISA Cert Validator vs MintySlab® | Card Centering

The clearest difference is in-app purchases: ISA Cert Validator at none against MintySlab® | Card Centering's 2. ISA Cert Validator also leads on ads (none vs shown) and rating (5.0 vs 4.6). MintySlab® | Card Centering's advantage is update cadence (weekly vs every 43 months). On price and ratings volume there is nothing between them.

Both are free to download. MintySlab® | Card Centering sells 2 in-app purchases, starting at $4.99 per month. ISA Cert Validator asks for nothing beyond the download.

ISA Cert Validator holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 7 and 9 respectively.

ISA Cert Validator ships an update every 43 months, MintySlab® | Card Centering weekly. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ISA Cert Validator | MintySlab® | Card Centering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/isa-cert-validator/id1663513607/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/mintyslab-card-centering/id6605924591/reviews) |
| Number of ratings | 7 | **9** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 43 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 46 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Darryl Polo](https://appshunter.io/developer/1663513609) | [Peryer Technologies LLC](https://appshunter.io/developer/1760990425) |

## What reviewers say

### ISA Cert Validator

[App page](https://appshunter.io/ios/app/isa-cert-validator/id1663513607)

Instantly verify the authenticity of graded sports and trading cards. Scan a QR code or enter a serial number to access details like year, set, grade, and population.

**Highlights:** Verify card authenticity, Scan QR codes on labels, Search by serial number, View card details (year, set, grade), Check population totals

**In-app purchases:** none


### MintySlab® | Card Centering

[App page](https://appshunter.io/ios/app/mintyslab-card-centering/id6605924591)

This app uses advanced computer vision to analyze the centering of sports and TCG trading cards. Get instant, accurate centering results to inform grading decisions and prepare cards for submission.

**Highlights:** Precision card centering analysis, Instant centering breakdown, Grade preparation confidence, Scan from camera roll, Scan from online listings, Evaluate before purchase

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MintySlab+ (Monthly) | $4.99 | per month |
| MintySlab+ (Annual) | $29.99 | per year |


## Frequently asked questions

### Is ISA Cert Validator free?

ISA Cert Validator is free to download, with no in-app purchases.

### Is MintySlab® | Card Centering free?

MintySlab® | Card Centering is free to download, with in-app purchases available.

### Which has better reviews, ISA Cert Validator or MintySlab® | Card Centering?

ISA Cert Validator is rated higher. ISA Cert Validator averages 5.0 out of 5 from 7 ratings, while MintySlab® | Card Centering averages 4.6 from 9 ratings.

### Do ISA Cert Validator or MintySlab® | Card Centering have ads?

MintySlab® | Card Centering shows ads; ISA Cert Validator does not.

### Which is updated more often, ISA Cert Validator or MintySlab® | Card Centering?

ISA Cert Validator ships an update every 43 months, and MintySlab® | Card Centering weekly. Most recently, ISA Cert Validator was updated on October 9, 2026 and MintySlab® | Card Centering on September 30, 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.*