# CircuitShepherd vs Windswell Automation

The clearest difference is in-app purchases: Windswell Automation at none against CircuitShepherd's 1. Windswell Automation also leads on iOS requirement (12.0 vs 14.0). CircuitShepherd's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. Windswell Automation asks for nothing beyond the download.

CircuitShepherd ships an update every 3 weeks, Windswell Automation every 6 weeks. The most recent releases landed on October 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CircuitShepherd | Windswell Automation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 83 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Josef Woess](https://appshunter.io/developer/1597520399) | [Ansync Labs](https://appshunter.io/developer/1172950759) |

## What reviewers say

### CircuitShepherd

[App page](https://appshunter.io/ios/app/circuitshepherd/id1598606653)

Automate electronic circuit design with AI-driven parameter optimization. Define schematics and design goals, and the software finds optimal part values in real-time. Save time on calculations and iterations with this intuitive tool.

**Highlights:** Automated parameter optimization, AI-driven circuit engineering, Real-time design goal finding, Intuitive user interface, Schematic definition, Part value calculation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| full version | $6.99 | per month |


### Windswell Automation

[App page](https://appshunter.io/ios/app/windswell-automation/id6444498755)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CircuitShepherd free?

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

### Is Windswell Automation free?

Windswell Automation is free to download, with no in-app purchases.

### Do CircuitShepherd or Windswell Automation have ads?

Neither CircuitShepherd nor Windswell Automation shows ads.

### Which is updated more often, CircuitShepherd or Windswell Automation?

CircuitShepherd ships an update every 3 weeks, and Windswell Automation every 6 weeks. Most recently, CircuitShepherd was updated on October 2, 2026 and Windswell Automation on October 27, 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.*