# PSA™ vs GradeChum Scanner

The clearest difference is in-app purchases: GradeChum Scanner at none against PSA™'s 1. GradeChum Scanner also leads on update cadence (every 8 days vs every 6 weeks). PSA™'s advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. PSA™ sells 1 one-off in-app purchase. GradeChum Scanner asks for nothing beyond the download.

PSA™ ships an update every 6 weeks, GradeChum Scanner every 8 days. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | PSA™ | GradeChum Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Size | 104 MB | 54 MB |
| Requires iOS | **15.2** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Corbeautech](https://appshunter.io/developer/1661958043) | [CodeChum Software Solutions Inc.](https://appshunter.io/developer/1829864357) |

## What reviewers say

### PSA™

[App page](https://appshunter.io/ios/app/psa/id6740616257)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Relationship Management | Free | one-time |


### GradeChum Scanner

[App page](https://appshunter.io/ios/app/gradechum-scanner/id6749284633)

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

**In-app purchases:** none


## Frequently asked questions

### Is PSA™ free?

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

### Is GradeChum Scanner free?

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

### Do PSA™ or GradeChum Scanner have ads?

Neither PSA™ nor GradeChum Scanner shows ads.

### Which is updated more often, PSA™ or GradeChum Scanner?

PSA™ ships an update every 6 weeks, and GradeChum Scanner every 8 days. Most recently, PSA™ was updated on September 30, 2026 and GradeChum Scanner on October 1, 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.*