# Nyquist App

> App for practicing the Nyquist stability criterion in control engineering. (iPhone/iPad app by Patricia Pauli.)

- Source: https://appshunter.io/ios/app/nyquist-app/id1444291209 (this page in markdown: same URL + `.md`)
- Developer: [Patricia Pauli](https://appshunter.io/developer/1587769862)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 22 MB
- Languages: American English
- Released: 2019-05-07
- Data updated: 2026-06-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nyquist-app/id1444291209/reviews.md

## What is Nyquist App?

In this app, you can practice the Nyquist stability criterion. With the Nyquist stability criterion, you can determine the stability of the closed loop based on the frequency response of the open loop, without explicitly calculating the poles of the closed loop.

This app was developed at the Institute for Systems Theory and Automatic Control of the University of Stuttgart and accompanies the
course "Einführung in die Regelungstechnik" at the University of Stuttgart.

Nevertheless, the content and tasks are self-contained, and we encourage all interested in this topic to play with the app and practice the Nyquist stability criterion.

## Key features

- Nyquist stability criterion practice
- Determine closed-loop stability
- Frequency response analysis
- Self-contained educational content
- Developed for control engineering course


## Frequently asked questions about Nyquist App

### What is the Nyquist App?

The Nyquist App is an educational tool designed to help users practice and understand the Nyquist stability criterion. It allows you to determine the stability of a closed-loop system based on the frequency response of its open loop.

### Who developed the Nyquist App?

The Nyquist App was developed at the Institute for Systems Theory and Automatic Control of the University of Stuttgart. It accompanies the course "Einführung in die Regelungstechnik".

### Is the Nyquist App suitable for self-study?

Yes, the content and tasks within the Nyquist App are self-contained. It is encouraged for all interested individuals to use it for practice and learning, even if they are not enrolled in the accompanying course.

### What devices support the Nyquist App?

The Nyquist App is available for iPhone, iPad, and iPod devices, indicating broad compatibility within the Apple ecosystem.

### How often is the Nyquist App updated?

The Nyquist App was last updated on August 21, 2024, with version 1.5.0. This suggests a commitment to maintaining and potentially improving the application.

### What is the age rating for the Nyquist App?

The Nyquist App has an age rating of 4+, making it accessible to a wide range of users interested in its educational content.

### Does the Nyquist App have ads?

No, the Nyquist App does not contain advertisements. It is a free application without any ad interruptions.

### What is the user feedback on the Nyquist App?

Based on available data, the Nyquist App has received a perfect rating of 5.0 stars from one user, indicating a highly positive initial reception.

## Version history (last 5 releases)

### 1.5.0 — 2024-08-21

- Bug Fixes
- SDK Updates

### 1.4.2 — 2023-11-16

- Bug fixes

### 1.4.1 — 2023-01-20

Bug fixes

### 1.3.1 — 2021-04-10

- Transfer function is now visible

### 1.2.1 — 2020-05-05

- New presentation of the solution
- Small bug fixes

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## More apps by Patricia Pauli

- [IST Quiz App](https://appshunter.io/ios/app/ist-quiz-app/id1491663052)

All apps by Patricia Pauli: https://appshunter.io/developer/1587769862

## Related topics

[nyquist app](https://appshunter.io/ios/topics/nyquist-app) · [svt performance](https://appshunter.io/ios/topics/svt-performance)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*