# ControlsLab vs Knowledge Universe Labs

The clearest difference is in-app purchases: Knowledge Universe Labs at none against ControlsLab's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ControlsLab sells 1 one-off in-app purchase. Knowledge Universe Labs asks for nothing beyond the download.

## The numbers

| Metric | ControlsLab | Knowledge Universe Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/controlslab/id6763078520/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 278 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Resto](https://appshunter.io/developer/1895152088) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### ControlsLab

[App page](https://appshunter.io/ios/app/controlslab/id6763078520)

This app offers a professional-grade simulator for system dynamics and control systems. It allows users to visualize and interact with mass-spring-damper systems and control loops without coding. Explore parameters, inputs, and analysis modes with real-time visual feedback.

**Highlights:** Real-time system simulation, Parameter adjustment with sliders, Live time-domain response plot, S-plane pole visualization, Open-loop and closed-loop modes, PID controller tuning, Bode plot analysis

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ControlsLab Pro | $4.99 | one-time |


### Knowledge Universe Labs

[App page](https://appshunter.io/ios/app/knowledge-universe-labs/id6814379723)

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

**In-app purchases:** none


## Frequently asked questions

### Is ControlsLab free?

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

### Is Knowledge Universe Labs free?

Knowledge Universe Labs is free to download, with no in-app purchases.

### Do ControlsLab or Knowledge Universe Labs have ads?

Neither ControlsLab nor Knowledge Universe Labs 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.*