# EE ToolKit PRO vs CircuitShepherd

The clearest difference is review sentiment: EE ToolKit PRO at 90% against CircuitShepherd's 0%. EE ToolKit PRO also leads on rating (4.9 vs 1.5) and in-app purchases (none vs 1). CircuitShepherd's advantage is price (Free vs $9.99) and update cadence (every 3 weeks vs every 3 months). On ads and device support there is nothing between them.

CircuitShepherd is free to download; EE ToolKit PRO costs $9.99 up front. CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. EE ToolKit PRO asks for nothing beyond the download.

EE ToolKit PRO holds the better App Store score, 4.9 against 1.5. That said, the two scores are not equally well evidenced: EE ToolKit PRO has 293 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 90% of EE ToolKit PRO's written reviews are positive against 0% of CircuitShepherd's.

EE ToolKit PRO ships an update every 3 months, CircuitShepherd every 3 weeks. The most recent releases landed on September 21, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | EE ToolKit PRO | CircuitShepherd |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (293 ratings)](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews) |
| Number of ratings | **293** | 2 |
| Positive reviews | **89.6% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#98** | — |
| Size | 289 MB | 49 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Josef Woess](https://appshunter.io/developer/1597520399) |

## What reviewers say

### EE ToolKit PRO

[App page](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426)

**Currently charting:** #98 Top Paid · Productivity (US App Store)

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference sections for electronics engineers, students, and hobbyists. It includes features like a multi-functional keyboard, color code tools, audio scope, and circuit simulations, with ongoing improvements and updates.

**Highlights:** Over 160 electronic applications, Multi-functional keyboard, Color code and SMD code tools, Audio scope and frequency generator, Component reference section with datasheets, 555 Timer tools, PCB trace impedance calculators, Real-time circuit simulations

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Top-notch tool
- 👍 Extremely helpful
- 🔥 Invaluable for electronics work
- 💯 Excellent app
- 🔍 Comprehensive reference

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 UI could be more intuitive
- 📱 Some features not optimized for mobile
- 🔢 Limited functionality for advanced users

**Reported bugs**

- 7400 routine causes app to close
- Resistor value calculation issues
- Compatibility problems with newer iOS versions

**Requested features**

- Add support for vacuum tubes
- Implement logarithmic frequency sweep
- Include more component pinout information
- Integrate a circuit builder/simulator
- Add DB to RMS and peak-to-peak conversion


### 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 EE ToolKit PRO free?

EE ToolKit PRO costs $9.99, with no in-app purchases.

### Is CircuitShepherd free?

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

### Which has better reviews, EE ToolKit PRO or CircuitShepherd?

EE ToolKit PRO is rated higher. EE ToolKit PRO averages 4.9 out of 5 from 293 ratings, while CircuitShepherd averages 1.5 from 2 ratings.

### Do EE ToolKit PRO or CircuitShepherd have ads?

Neither EE ToolKit PRO nor CircuitShepherd shows ads.

### Which is updated more often, EE ToolKit PRO or CircuitShepherd?

EE ToolKit PRO ships an update every 3 months, and CircuitShepherd every 3 weeks. Most recently, EE ToolKit PRO was updated on September 21, 2026 and CircuitShepherd on June 4, 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.*