# Pocket Slide Rule Expert vs Bode Plot Calculator

The clearest difference is review sentiment: Bode Plot Calculator at 100% against Pocket Slide Rule Expert's 83%. Bode Plot Calculator also leads on rating (5.0 vs 4.8). Pocket Slide Rule Expert's advantage is update cadence (every 4 months vs every 12 months) and price ($0.99 vs $3.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Pocket Slide Rule Expert costs $0.99 and Bode Plot Calculator $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bode Plot Calculator holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 83% of Pocket Slide Rule Expert's written reviews are positive against 100% of Bode Plot Calculator's.

Pocket Slide Rule Expert ships an update every 4 months, Bode Plot Calculator every 12 months. The most recent releases landed on September 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Pocket Slide Rule Expert | Bode Plot Calculator |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/pocket-slide-rule-expert/id434331277/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bode-plot-calculator/id6496601138/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Paid | Paid |
| Size | 16 MB | 9 MB |
| Requires iOS | **9.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TestTubeGames](https://appshunter.io/developer/421890276) | [Edoardo Orzes](https://appshunter.io/developer/1665361246) |

## What reviewers say

### Pocket Slide Rule Expert

[App page](https://appshunter.io/ios/app/pocket-slide-rule-expert/id434331277)

Learn to use a classic slide rule with this app. It offers precise calculations and an "auto-slide-rule" mode to demonstrate operations. Save and reuse slider positions for frequent calculations.

**Highlights:** Classic slide rule simulation, Auto-slide-rule demonstration mode, Precise cursor and slider control, Save and reuse slider positions ('Snaps'), 19 basic operations supported, Multiplication, division, powers, logs, trig functions

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

**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 Pocket Slide Rule Expert free?

Pocket Slide Rule Expert costs $0.99, 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, Pocket Slide Rule Expert or Bode Plot Calculator?

Bode Plot Calculator is rated higher. Pocket Slide Rule Expert averages 4.8 out of 5 from 4 ratings, while Bode Plot Calculator averages 5.0 from 1 ratings.

### Do Pocket Slide Rule Expert or Bode Plot Calculator have ads?

Neither Pocket Slide Rule Expert nor Bode Plot Calculator shows ads.

### Which is updated more often, Pocket Slide Rule Expert or Bode Plot Calculator?

Pocket Slide Rule Expert ships an update every 4 months, and Bode Plot Calculator every 12 months. Most recently, Pocket Slide Rule Expert was updated on September 21, 2026 and Bode Plot Calculator on October 8, 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.*