# RST 599TK Pro vs Bode Plot Calculator

The clearest difference is update cadence: RST 599TK Pro at every 3 months against Bode Plot Calculator's every 12 months. RST 599TK Pro also leads on price ($2.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

RST 599TK Pro costs $2.99 and Bode Plot Calculator $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RST 599TK Pro ships an update every 3 months, Bode Plot Calculator every 12 months. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | RST 599TK Pro | Bode Plot Calculator |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| 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 3 months** | Every 12 months |
| Monetization | — | Paid |
| Size | 32 MB | 9 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Edoardo Orzes](https://appshunter.io/developer/1665361246) |

## What reviewers say

### RST 599TK Pro

[App page](https://appshunter.io/ios/app/rst-599tk-pro/id1511628467)

**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 RST 599TK Pro free?

RST 599TK Pro costs $2.99, with no in-app purchases.

### Is Bode Plot Calculator free?

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

### Do RST 599TK Pro or Bode Plot Calculator have ads?

Neither RST 599TK Pro nor Bode Plot Calculator shows ads.

### Which is updated more often, RST 599TK Pro or Bode Plot Calculator?

RST 599TK Pro ships an update every 3 months, and Bode Plot Calculator every 12 months. Most recently, RST 599TK Pro was updated on September 20, 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.*