# CircuitShepherd — electronic circuit optimizer

> AI-powered electronic circuit design optimization software. (iPhone/iPad app by Josef Woess.)

- Source: https://appshunter.io/ios/app/circuitshepherd/id1598606653 (this page in markdown: same URL + `.md`)
- Developer: [Josef Woess](https://appshunter.io/developer/1597520399)
- Category: Productivity, Education
- Price: Free with in-app purchases
- Rating: 1.50/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 49 MB
- Released: 2022-04-21
- Data updated: 2026-06-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews.md

## What is CircuitShepherd?

CircuitShepherd provides you with analog-design superpowers by doing automated parameter optimization it in realtime!
It's a novel Electronic Design Automation software for AI driven electronics circuit engineering. You define an arbitrary schematic including specific design goals and CircuitShepherd will find the right part values for you. This is achieved by combining traditional circuit simulation techniques with AI driven parameter estimation algorithms and finally a simple and intuitive user interface. It’s easy to learn, fast to use and it will save you a lot of time by automating your daily calculation and iteration tasks.

CircuitShepherd is free to use immediately (with very basic features).

The full version with all features enabled is available via in-app purchase (subscription-based).

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.circuitshepherd.com/privacy-policy-iOS.html

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| full version | $6.99 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews.md

### 1/5 — Free version is useless

*2024-04-24*

The only parts accessible are the resistor and capacitor. I would have given 3-4 stars if they had transistors available for the free version ( and the sim worked) but even those are locked behind the paywall. I understand the concept of free vs paid versions of apps like these, but the free version of CS has me wondering if the devs do. I can’t even build a transistor multivibrator circuit with the free app. I’d recommend finding another app at this point.

**Developer response:** Based on your comment, it seems you might not fully understand the benefits of the app, whether free or paid. I recommend watching some tutorial videos and then reconsidering your rating. Thank you!

## Frequently asked questions about CircuitShepherd

### What is CircuitShepherd?

CircuitShepherd is an Electronic Design Automation software that uses AI to optimize electronic circuit parameters in real-time. It helps engineers find the right part values by defining schematics and design goals.

### How does CircuitShepherd optimize circuits?

It combines traditional circuit simulation with AI-driven parameter estimation algorithms. You define your circuit and goals, and the software finds the optimal component values for you.

### Is CircuitShepherd free to use?

CircuitShepherd offers basic features for free. The full version with all features enabled is available through a subscription-based in-app purchase.

### What is the subscription cost for CircuitShepherd?

The full version of CircuitShepherd is available via a subscription for $6.99 per month. This unlocks all features for enhanced circuit design capabilities.

### What devices does CircuitShepherd support?

CircuitShepherd is available on iPhone, iPad, and iPod. It is designed for mobile use across these Apple devices.

### How often is CircuitShepherd updated?

The latest version, 1.14, was released on January 14, 2024. The app was initially released on April 21, 2022, indicating regular updates.

### What is the age rating for CircuitShepherd?

CircuitShepherd has an age rating of 4+. This suggests it is suitable for a wide audience, including younger users interested in electronics.

### Does CircuitShepherd have ads?

No, CircuitShepherd does not contain advertisements. The app is ad-free, with monetization focused on in-app purchases for its full version.

## Version history (last 5 releases)

### 1.14 — 2024-01-14

Improved plot drawing style.

### 1.13 — 2024-01-07

Introducing a new symbol and feature: 'Inductive Coupling'
Inductive Coupling is compatible with both AC and DC-based HF (High Frequency) analysis.
Setting up a Coupling coefficient is similar to the process used in LTspice.
Additionally, the Coupling coefficient can be set to 'auto', which designates it as an optimizable parameter.
Similar to Inductive Coupling, controlled sources are now functional across isolated circuit boundaries.

### 1.12 — 2023-12-18

Stability improvements.

### 1.11 — 2023-12-10

Stability improvements.

### 1.10.1 — 2023-10-13

Performance and stability improvements.
Slightly changed value input behavior to fix an issue with iOS 17.
Changed Twitter to X.

## Apps similar to CircuitShepherd

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [EE ToolKit PRO for iPad](https://appshunter.io/ios/app/ee-toolkit-pro-for-ipad/id393145367) | 4.8 (79) | $7.99 | Productivity |
| [iCircuit](https://appshunter.io/ios/app/icircuit/id383359044) | 3.8 (131) | $12.99 | Productivity |
| [Electronics Engineer Helper](https://appshunter.io/ios/app/electronics-engineer-helper/id896429646) | 4.8 (427) | Free | Productivity |
| [ElectroMaster - Electrical Eng](https://appshunter.io/ios/app/electromaster-electrical-eng/id1330321712) | 4.9 (9) | Free | Productivity |
| [Resistor : electronics tools](https://appshunter.io/ios/app/resistor-electronics-tools/id6504726625) | — | Free | Productivity |
| [Mouser](https://appshunter.io/ios/app/mouser/id465777531) | 2.1 (27) | Free | Productivity |

## More apps by Josef Woess

- [Infinity Sketch](https://appshunter.io/ios/app/infinity-sketch/id6736661584)
- [Photo Match Action](https://appshunter.io/ios/app/photo-match-action/id6761694409)

All apps by Josef Woess: https://appshunter.io/developer/1597520399

## Related topics

[bode plot](https://appshunter.io/ios/topics/bode-plot)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*