# CircuitShepherd vs Signal Conditioning

The clearest difference is price: CircuitShepherd at Free against Signal Conditioning's $3.99. CircuitShepherd also leads on update cadence (every 3 weeks vs every 21 months) and iOS requirement (14.0 vs 16.1). Signal Conditioning's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

CircuitShepherd is free to download; Signal Conditioning costs $3.99 up front. CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. Signal Conditioning asks for nothing beyond the download.

CircuitShepherd ships an update every 3 weeks, Signal Conditioning every 21 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CircuitShepherd | Signal Conditioning |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| 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 21 months |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 1 MB |
| Requires iOS | **14.0** | 16.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Josef Woess](https://appshunter.io/developer/1597520399) | [Fabrizio Boco](https://appshunter.io/developer/466239616) |

## 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 |


### Signal Conditioning

[App page](https://appshunter.io/ios/app/signal-conditioning/id1660983914)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CircuitShepherd free?

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

### Is Signal Conditioning free?

Signal Conditioning costs $3.99, with no in-app purchases.

### Do CircuitShepherd or Signal Conditioning have ads?

Neither CircuitShepherd nor Signal Conditioning shows ads.

### Which is updated more often, CircuitShepherd or Signal Conditioning?

CircuitShepherd ships an update every 3 weeks, and Signal Conditioning every 21 months. Most recently, CircuitShepherd was updated on October 2, 2026 and Signal Conditioning on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*