# Car fuel generator vs Cat CPU System

The clearest difference is update cadence: Cat CPU System at weekly against Car fuel generator's every 11 months. Car fuel generator's advantage is iOS requirement (13.0 vs 15.0). 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.

Car fuel generator ships an update every 11 months, Cat CPU System weekly. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Car fuel generator | Cat CPU System |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Size | 2 MB | 39 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Dmitriy Klimenko](https://appshunter.io/developer/1553655171) | [Brook Design, LLC](https://appshunter.io/developer/1190785004) |

## What reviewers say

### Car fuel generator

[App page](https://appshunter.io/ios/app/car-fuel-generator/id1629218609)

**In-app purchases:** none


### Cat CPU System

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Car fuel generator free?

Car fuel generator is free to download, with no in-app purchases.

### Is Cat CPU System free?

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

### Do Car fuel generator or Cat CPU System have ads?

Neither Car fuel generator nor Cat CPU System shows ads.

### Which is updated more often, Car fuel generator or Cat CPU System?

Car fuel generator ships an update every 11 months, and Cat CPU System weekly. Most recently, Car fuel generator was updated on October 14, 2026 and Cat CPU System on October 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.*