# Cat® GRADE Assistant vs MSA4X4 Switch Panel

The clearest difference is update cadence: MSA4X4 Switch Panel at every 3 months against Cat® GRADE Assistant's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cat® GRADE Assistant ships an update every 8 months, MSA4X4 Switch Panel every 3 months. Both last shipped on September 20, 2026.

## The numbers

| Metric | Cat® GRADE Assistant | MSA4X4 Switch Panel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Size | 38 MB | 25 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Caterpillar Inc.](https://appshunter.io/developer/571668770) | [德伟 何](https://appshunter.io/developer/1584920366) |

## What reviewers say

### Cat® GRADE Assistant

[App page](https://appshunter.io/ios/app/cat-grade-assistant/id1604853064)

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

**In-app purchases:** none


### MSA4X4 Switch Panel

[App page](https://appshunter.io/ios/app/msa4x4-switch-panel/id6749755830)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cat® GRADE Assistant free?

Cat® GRADE Assistant is free to download, with no in-app purchases.

### Is MSA4X4 Switch Panel free?

MSA4X4 Switch Panel is free to download, with no in-app purchases.

### Do Cat® GRADE Assistant or MSA4X4 Switch Panel have ads?

Neither Cat® GRADE Assistant nor MSA4X4 Switch Panel shows ads.

### Which is updated more often, Cat® GRADE Assistant or MSA4X4 Switch Panel?

Cat® GRADE Assistant ships an update every 8 months, and MSA4X4 Switch Panel every 3 months. Most recently, Cat® GRADE Assistant was updated on September 20, 2026 and MSA4X4 Switch Panel on September 20, 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.*