# Nyquist App vs Bode Plot Calculator

The clearest difference is price: Nyquist App at Free against Bode Plot Calculator's $3.99. Nyquist App also leads on iOS requirement (13.0 vs 15). On rating, ratings volume, update cadence and ads there is nothing between them.

Nyquist App is free to download; Bode Plot Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Nyquist App against 5.0 for Bode Plot Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Nyquist App ships an update every 10 months, Bode Plot Calculator every 12 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Nyquist App | Bode Plot Calculator |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nyquist-app/id1444291209/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/bode-plot-calculator/id6496601138/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 12 months |
| Monetization | **Free** | Paid |
| Size | 22 MB | 9 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patricia Pauli](https://appshunter.io/developer/1587769862) | [Edoardo Orzes](https://appshunter.io/developer/1665361246) |

## What reviewers say

### Nyquist App

[App page](https://appshunter.io/ios/app/nyquist-app/id1444291209)

Practice the Nyquist stability criterion to determine closed-loop stability from open-loop frequency response. Developed for an introductory control engineering course, this app offers self-contained content for anyone interested in the topic.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Bode Plot Calculator

[App page](https://appshunter.io/ios/app/bode-plot-calculator/id6496601138)

This advanced calculator is designed for creating Bode plots and Nyquist diagrams. It also supports complex number calculations and time-domain graphing. Users can export plots and calculations for further analysis.

**Highlights:** Bode Plot generation, Nyquist Diagram visualization, Complex number calculations, Time-domain graphing, Export plots and calculations, Intuitive interface with themes, Sliders for real-time parameter changes

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

**In-app purchases:** none


## Frequently asked questions

### Is Nyquist App free?

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

### Is Bode Plot Calculator free?

Bode Plot Calculator costs $3.99, with no in-app purchases.

### Which has better reviews, Nyquist App or Bode Plot Calculator?

Nyquist App and Bode Plot Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Nyquist App or Bode Plot Calculator have ads?

Neither Nyquist App nor Bode Plot Calculator shows ads.

### Which is updated more often, Nyquist App or Bode Plot Calculator?

Nyquist App ships an update every 10 months, and Bode Plot Calculator every 12 months. Most recently, Nyquist App was updated on September 14, 2026 and Bode Plot Calculator on September 21, 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.*