# techSampler vs KABHOOM Robotics

The clearest difference is in-app purchases: KABHOOM Robotics at none against techSampler's 1. KABHOOM Robotics also leads on update cadence (every 9 days vs every 4 months). techSampler's advantage is iOS requirement (7.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. techSampler sells 1 one-off in-app purchase. KABHOOM Robotics asks for nothing beyond the download.

techSampler ships an update every 4 months, KABHOOM Robotics every 9 days. The most recent releases landed on September 4, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | techSampler | KABHOOM Robotics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/techsampler/id626214040/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 29 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Byte Works, Inc.](https://appshunter.io/developer/286319447) | [Shilpa Parmar](https://appshunter.io/developer/1797075196) |

## 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 |


### KABHOOM Robotics

[App page](https://appshunter.io/ios/app/kabhoom-robotics/id6742148163)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is techSampler free?

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

### Is KABHOOM Robotics free?

KABHOOM Robotics is free to download, with no in-app purchases.

### Do techSampler or KABHOOM Robotics have ads?

Neither techSampler nor KABHOOM Robotics shows ads.

### Which is updated more often, techSampler or KABHOOM Robotics?

techSampler ships an update every 4 months, and KABHOOM Robotics every 9 days. Most recently, techSampler was updated on September 4, 2026 and KABHOOM Robotics on September 17, 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.*