# Electronics Kit vs CHW Watch

The clearest difference is in-app purchases: CHW Watch at none against Electronics Kit's 5. CHW Watch also leads on update cadence (every 2 weeks vs every 6 weeks). Electronics Kit's advantage is iOS requirement (9.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Electronics Kit sells 5 one-off in-app purchases. CHW Watch asks for nothing beyond the download.

Electronics Kit ships an update every 6 weeks, CHW Watch every 2 weeks. The most recent releases landed on September 25, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Electronics Kit | CHW Watch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (65 ratings)](https://appshunter.io/ios/app/electronics-kit/id1190014476/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 91.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 26 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Shih You tzu](https://appshunter.io/developer/1792443758) |

## What reviewers say

### Electronics Kit

[App page](https://appshunter.io/ios/app/electronics-kit/id1190014476)

This app offers a comprehensive suite of electronics tools and calculators for hobbyists and professionals. It includes features for component value calculation, pinout diagrams, and various electronic resources. Users can access a free version with ads or a PRO version for enhanced functionality and an ad-free experience.

**Highlights:** Component value calculators, Extensive pinout diagrams, Electronic resource library, SMD resistor code lookup, Ohm's law calculator, RC charging/discharging calculator, Frequency converter

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock no. of components limit | $0.99 | one-time |
| Unlock Pro feature | $1.99 | one-time |
| 'Show steps' in nodal analysis | $2.99 | one-time |
| Unlock controlled sources | $2.99 | one-time |
| 'Show steps' in equivalent cir | $3.99 | one-time |


### CHW Watch

[App page](https://appshunter.io/ios/app/chw-watch/id6740995334)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electronics Kit free?

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

### Is CHW Watch free?

CHW Watch is free to download, with no in-app purchases.

### Do Electronics Kit or CHW Watch have ads?

Neither Electronics Kit nor CHW Watch shows ads.

### Which is updated more often, Electronics Kit or CHW Watch?

Electronics Kit ships an update every 6 weeks, and CHW Watch every 2 weeks. Most recently, Electronics Kit was updated on September 25, 2026 and CHW Watch on September 5, 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.*