# Bode Plot Calculator — Bode plots, Nyquist diagrams

> Advanced calculator for Bode plots, Nyquist diagrams, and complex number analysis. (iPhone/iPad app by Edoardo Orzes.)

- Source: https://appshunter.io/ios/app/bode-plot-calculator/id6496601138 (this page in markdown: same URL + `.md`)
- Developer: [Edoardo Orzes](https://appshunter.io/developer/1665361246)
- Category: Education, Utilities
- Price: $3.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15 · 5 MB
- Languages: American English, Arabic, French (France), Hindi, Italian, Brazilian Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2024-04-19
- Data updated: 2026-08-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/bode-plot-calculator/id6496601138/reviews.md

## What is Bode Plot Calculator?

This is not a standard scientific calculator, it is optimized to evaluate Bode plots and Nyquist diagrams.

This calculator is also fully compatible with the complex domain and standard graphs in time domain (linear).

Writing a calculation produces the numeric result, as any calculator, while adding the variable t produces a plot in time domain.
Inserting f, omega or s instead, produces the Bode Plot, then it is possible to switch to the Nyquist diagram.

Functionalities:

- Nice looking interface, intuitive, immediate and able to not only replace, but to enrich hardware calculators.
- Elegant and modern themes and colors to choose from, all included in the first purchase.
- A little magic feature: in scientific notation, swipe over the result to move the decimal dot and see the ten power change :)

- All scientific function (sin, cos, tan, ..., log, ln, exp, ..., atan2).
- Calculation structured in 2D, with fractions, powers, roots, brackets and so on, with very easy to nest operations, no limits!
- Tap on the calculation to place the cursor and write.

- Undo/Redo buttons
- A catalog with 40 physics fundamentals constants, with name and unit of measure, ready to be inserted.
- Possibility to store values.
- Chronology.

- Sliders: yes, you can insert many parameters and change them swiping on a slider to see the effect in real time.
- Spaces: access to up to 4 spaces on which you can edit and keep calculations, useful also to superpose different plots.
- Joystick mode: swipe over the buttons to move the cursor (still in beta).

- Bode Plots: inserting a variable, s, omega or f, produces the Bode Plot, toggling on the button it switches to the Nyquist diagram.
- Linear Plots: inserting the t variable, produces a plot in a linear domain.

- Complex numbers: the app automatically uses complex numbers when needed, no need to set the complex mode.
- Plots also support for complex values.
- Integrals and derivatives (in the future also limits).

- Export plot and calculation as image/PDF, copy result as text

## Key features

- 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

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/bode-plot-calculator/id6496601138/reviews.md

### 5/5 — Beautiful (Hope)

*2026-02-13*

Please keep working on the resolution/s. Beautiful application overall. With Kind Regards ~

## Frequently asked questions about Bode Plot Calculator

### What is Bode Plot Calculator used for?

Bode Plot Calculator is specifically designed to evaluate Bode plots and Nyquist diagrams. It also handles complex number calculations and linear time-domain plots, offering a comprehensive tool for system analysis.

### What devices does Bode Plot Calculator support?

Bode Plot Calculator is available for iPhone, iPad, and iPod. It is designed to run on iOS devices.

### How much does Bode Plot Calculator cost?

Bode Plot Calculator is a paid application, priced at $3.99. This one-time purchase includes all features and themes.

### Does Bode Plot Calculator have ads?

No, Bode Plot Calculator is ad-free. Users can enjoy an uninterrupted experience without advertisements.

### How often is Bode Plot Calculator updated?

The latest version, 1.2, was released on 2025-09-23. Updates are provided to enhance functionality and ensure compatibility.

### What is the age rating for Bode Plot Calculator?

Bode Plot Calculator has an age rating of 4+. This indicates it is suitable for users of all ages.

### Can I export my plots from Bode Plot Calculator?

Yes, Bode Plot Calculator allows you to export your plots and calculations as an image or PDF. You can also copy the results as text for use in other applications.

### Does Bode Plot Calculator support complex numbers automatically?

Yes, the app automatically uses complex numbers when needed for calculations and plots. You do not need to manually set a complex mode.

## Version history (last 3 releases)

### 1.2 — 2025-09-23

Improvements and updated for iOS 26

### 1.1 — 2024-04-21

- Improved zoom
- Possibility to define S as jω or j2πf in the settings

### 1.0 — 2024-04-19

No release notes.

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## More apps by Edoardo Orzes

- [Smith Charts](https://appshunter.io/ios/app/smith-charts/id1602503719)
- [BLE Scanner IoT](https://appshunter.io/ios/app/ble-scanner-iot/id1644302159)
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All apps by Edoardo Orzes: https://appshunter.io/developer/1665361246

## Related topics

[bode plot calculator](https://appshunter.io/ios/topics/bode-plot-calculator) · [bode plot](https://appshunter.io/ios/topics/bode-plot)

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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 2026-08-01.*