# Power System Lab vs Asu

The clearest difference is in-app purchases: Power System Lab at none against Asu's 3. Asu's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Asu sells 3 in-app purchases, starting at $2.99 per month. Power System Lab asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Power System Lab | Asu |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Subscription | — |
| Size | 256 MB | 58 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Serhii Zai](https://appshunter.io/developer/6814270425) | [Askat Kengesbek](https://appshunter.io/developer/1612966564) |

## What reviewers say

### 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


### Asu

[App page](https://appshunter.io/ios/app/asu/id6816665062)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium на месяц | $2.99 | per month |
| Premium на 6 месяцев | $8.99 | per 6 months |
| Premium на год | $12.99 | per year |


## Frequently asked questions

### Is Power System Lab free?

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

### Is Asu free?

Asu is free to download, with in-app purchases available.

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

Neither Power System Lab nor Asu shows ads.

### Which is updated more often, Power System Lab or Asu?

Power System Lab ships an update every 3 days, and Asu every 3 days. Most recently, Power System Lab was updated on October 29, 2026 and Asu on October 31, 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.*