# Bode Plot Calculator vs Root Locus Plotter

The clearest difference is price: Root Locus Plotter at Free against Bode Plot Calculator's $3.99. Root Locus Plotter also leads on update cadence (every 3 months vs every 12 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Root Locus Plotter 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.

Bode Plot Calculator ships an update every 12 months, Root Locus Plotter every 3 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Bode Plot Calculator | Root Locus Plotter |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bode-plot-calculator/id6496601138/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 9 MB | 30 MB |
| Requires iOS | 15 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edoardo Orzes](https://appshunter.io/developer/1665361246) | [Sthefano Schiavon](https://appshunter.io/developer/1882733645) |

## What reviewers say

### 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


### Root Locus Plotter

[App page](https://appshunter.io/ios/app/root-locus-plotter/id6760122394)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bode Plot Calculator free?

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

### Is Root Locus Plotter free?

Root Locus Plotter is free to download, with no in-app purchases.

### Do Bode Plot Calculator or Root Locus Plotter have ads?

Neither Bode Plot Calculator nor Root Locus Plotter shows ads.

### Which is updated more often, Bode Plot Calculator or Root Locus Plotter?

Bode Plot Calculator ships an update every 12 months, and Root Locus Plotter every 3 months. Most recently, Bode Plot Calculator was updated on September 21, 2026 and Root Locus Plotter on September 16, 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.*