# Cat CPU System vs Socket2U Charging

The clearest difference is update cadence: Cat CPU System at weekly against Socket2U Charging's every 6 weeks. 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, Socket2U Charging every 6 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Cat CPU System | Socket2U Charging |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Size | 39 MB | 59 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Brook Design, LLC](https://appshunter.io/developer/1190785004) | [Socket2U Charging LLC](https://appshunter.io/developer/1855793884) |

## What reviewers say

### Cat CPU System

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Socket2U Charging

[App page](https://appshunter.io/ios/app/socket2u-charging/id6755713572)

**Features:** macOS Compatibility, Apple Wallet

**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 Socket2U Charging free?

Socket2U Charging is free to download, with no in-app purchases.

### Do Cat CPU System or Socket2U Charging have ads?

Neither Cat CPU System nor Socket2U Charging shows ads.

### Which is updated more often, Cat CPU System or Socket2U Charging?

Cat CPU System ships an update weekly, and Socket2U Charging every 6 weeks. Most recently, Cat CPU System was updated on October 3, 2026 and Socket2U Charging on October 2, 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.*