# Cat CPU System vs ThermoHammer

The clearest difference is update cadence: ThermoHammer at every 3 days against Cat CPU System's weekly. 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 CPU System ships an update weekly, ThermoHammer every 3 days. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Cat CPU System | ThermoHammer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 39 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brook Design, LLC](https://appshunter.io/developer/1190785004) | [Gogita Kupatadze](https://appshunter.io/developer/1729061372) |

## What reviewers say

### Cat CPU System

[App page](https://appshunter.io/ios/app/cat-cpu-system/id6695728672)

**Features:** macOS Compatibility

**In-app purchases:** none


### ThermoHammer

[App page](https://appshunter.io/ios/app/thermohammer/id6791439615)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cat CPU System free?

Cat CPU System is free to download, with no in-app purchases.

### Is ThermoHammer free?

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

### Do Cat CPU System or ThermoHammer have ads?

Neither Cat CPU System nor ThermoHammer shows ads.

### Which is updated more often, Cat CPU System or ThermoHammer?

Cat CPU System ships an update weekly, and ThermoHammer every 3 days. Most recently, Cat CPU System was updated on October 20, 2026 and ThermoHammer 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.*