# techSampler vs Bode Plot Calculator

The clearest difference is review sentiment: Bode Plot Calculator at 100% against techSampler's 50%. Bode Plot Calculator also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 1). techSampler's advantage is price (Free vs $3.99) and update cadence (every 4 months vs every 12 months). On ratings volume, ads and device support there is nothing between them.

techSampler is free to download; Bode Plot Calculator costs $3.99 up front. techSampler sells 1 one-off in-app purchase. Bode Plot Calculator asks for nothing beyond the download.

Bode Plot Calculator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of techSampler's written reviews are positive against 100% of Bode Plot Calculator's.

techSampler ships an update every 4 months, Bode Plot Calculator every 12 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | techSampler | Bode Plot Calculator |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/techsampler/id626214040/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bode-plot-calculator/id6496601138/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 38 MB | 9 MB |
| Requires iOS | **7.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Byte Works, Inc.](https://appshunter.io/developer/286319447) | [Edoardo Orzes](https://appshunter.io/developer/1665361246) |

## What reviewers say

### techSampler

[App page](https://appshunter.io/ios/app/techsampler/id626214040)

Explore dozens of free, standalone apps with complete source code for electronics, science, math, and graphics. This companion app to a popular book provides executable projects and programming tools for iPhone and iPad.

**Highlights:** Free standalone apps with source code, Electronics and sensor projects, Data collection and analysis, Interactive graphics and programming, Companion to O'Reilly book, Built-in help and debugger, STEM education tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Editing | $14.99 | one-time |


### 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 techSampler free?

techSampler is free to download, with in-app purchases available.

### Is Bode Plot Calculator free?

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

### Which has better reviews, techSampler or Bode Plot Calculator?

Bode Plot Calculator is rated higher. techSampler averages 3.0 out of 5 from 2 ratings, while Bode Plot Calculator averages 5.0 from 1 ratings.

### Do techSampler or Bode Plot Calculator have ads?

Neither techSampler nor Bode Plot Calculator shows ads.

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

techSampler ships an update every 4 months, and Bode Plot Calculator every 12 months. Most recently, techSampler was updated on October 6, 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.*