# RuLeS vs Power System Lab

The clearest difference is iOS requirement: RuLeS at 11.0 against Power System Lab's 17.0. 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.

## The numbers

| Metric | RuLeS | Power System Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (3 ratings)](https://appshunter.io/ios/app/power-system-lab/id6814270423/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | — | Subscription |
| Size | 117 MB | 256 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [M-KOMPANI, OOO](https://appshunter.io/developer/1164586533) | [Serhii Zai](https://appshunter.io/developer/6814270425) |

## What reviewers say

### RuLeS

[App page](https://appshunter.io/ios/app/rules/id1634900584)

**In-app purchases:** none


### Power System Lab

[App page](https://appshunter.io/ios/app/power-system-lab/id6814270423)

This app offers a comprehensive learning experience for marine electrical systems through interactive simulations, practical tools, and engaging games. It allows users to explore virtual environments, perform diagnostics, and test their knowledge with various challenges. The app also includes useful calculation tools and customization options.

**Highlights:** Interactive marine electrical simulations, Virtual instruments and diagnostic tools, Four educational games, Electrical calculation tools, Customizable learning environment, Progress tracking and account sync

**In-app purchases:** none


## Frequently asked questions

### Is RuLeS free?

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

### Is Power System Lab free?

Power System Lab is free to download, with no in-app purchases.

### Do RuLeS or Power System Lab have ads?

Neither RuLeS nor Power System Lab shows ads.

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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.*