# CircuitShepherd vs Jaspr

The clearest difference is update cadence: Jaspr at every 5 days against CircuitShepherd's every 3 weeks. CircuitShepherd's advantage is iOS requirement (14.0 vs 18.0). On price, ads, in-app purchases 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 and Jaspr sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CircuitShepherd ships an update every 3 weeks, Jaspr every 5 days. The most recent releases landed on October 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CircuitShepherd | Jaspr |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 32 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Josef Woess](https://appshunter.io/developer/1597520399) | [Scott Manley](https://appshunter.io/developer/1864388985) |

## 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 |


### Jaspr

[App page](https://appshunter.io/ios/app/jaspr/id6762830613)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Jaspr Pro | $9.99 | one-time |


## Frequently asked questions

### Is CircuitShepherd free?

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

### Is Jaspr free?

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

### Do CircuitShepherd or Jaspr have ads?

Neither CircuitShepherd nor Jaspr shows ads.

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

CircuitShepherd ships an update every 3 weeks, and Jaspr every 5 days. Most recently, CircuitShepherd was updated on October 2, 2026 and Jaspr on October 28, 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.*