# Mouser vs CircuitShepherd

The clearest difference is rating: Mouser at 2.4 against CircuitShepherd's 1.5. Mouser also leads on in-app purchases (none vs 1) and review sentiment (18% vs 0%). CircuitShepherd's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

Mouser holds the better App Store score, 2.4 against 1.5. That said, the two scores are not equally well evidenced: Mouser has 34 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 18% of Mouser's written reviews are positive against 0% of CircuitShepherd's.

Mouser ships an update every 6 weeks, CircuitShepherd every 3 weeks. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Mouser | CircuitShepherd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (34 ratings)](https://appshunter.io/ios/app/mouser/id465777531/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews) |
| Number of ratings | **34** | 2 |
| Positive reviews | **17.9% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 49 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mouser Electronics](https://appshunter.io/developer/465777534) | [Josef Woess](https://appshunter.io/developer/1597520399) |

## What reviewers say

### Mouser

[App page](https://appshunter.io/ios/app/mouser/id465777531)

Easily find and browse the latest semiconductors and electronic components for your designs. Search by category, date, or manufacturer, and view real-time stock availability. Build shopping baskets, manage projects, and access your account for order history and status.

**Highlights:** Browse new products by date, category, manufacturer, Search and filter electronic components, View real-time stock availability and pricing, Build shopping baskets and manage projects, Access My Mouser account for order history, Barcode scanner for quick product lookup, Bookmark products for quick access

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Mouser free?

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

### Is CircuitShepherd free?

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

### Which has better reviews, Mouser or CircuitShepherd?

Mouser is rated higher. Mouser averages 2.4 out of 5 from 34 ratings, while CircuitShepherd averages 1.5 from 2 ratings.

### Do Mouser or CircuitShepherd have ads?

Neither Mouser nor CircuitShepherd shows ads.

### Which is updated more often, Mouser or CircuitShepherd?

Mouser ships an update every 6 weeks, and CircuitShepherd every 3 weeks. Most recently, Mouser was updated on September 18, 2026 and CircuitShepherd on June 4, 2026.

---

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