# STM Cloud vs CircuitShepherd

The clearest difference is in-app purchases: STM Cloud at none against CircuitShepherd's 1. CircuitShepherd's advantage is update cadence (every 3 weeks vs every 4 months). 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. STM Cloud asks for nothing beyond the download.

STM Cloud ships an update every 4 months, CircuitShepherd every 3 weeks. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | STM Cloud | CircuitShepherd |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 49 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STM PRODUCTS SRL](https://appshunter.io/developer/1478905748) | [Josef Woess](https://appshunter.io/developer/1597520399) |

## What reviewers say

### STM Cloud

[App page](https://appshunter.io/ios/app/stm-cloud/id1478905749)

**Features:** macOS Compatibility

**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 STM Cloud free?

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

### Is CircuitShepherd free?

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

### Do STM Cloud or CircuitShepherd have ads?

Neither STM Cloud nor CircuitShepherd shows ads.

### Which is updated more often, STM Cloud or CircuitShepherd?

STM Cloud ships an update every 4 months, and CircuitShepherd every 3 weeks. Most recently, STM Cloud was updated on October 7, 2026 and CircuitShepherd on October 2, 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.*