# Electrical Formulator vs CircuitShepherd

The clearest difference is rating: Electrical Formulator at 5.0 against CircuitShepherd's 1.5. Electrical Formulator also leads on review sentiment (15% vs 0%). CircuitShepherd's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (14.0 vs 18.4). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Electrical Formulator sells 1 one-off in-app purchase and CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Electrical Formulator holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 15% of Electrical Formulator's written reviews are positive against 0% of CircuitShepherd's.

Electrical Formulator ships an update every 2 months, CircuitShepherd every 3 weeks. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Electrical Formulator | CircuitShepherd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/electrical-formulator/id299749412/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **15.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 16 MB | 49 MB |
| Requires iOS | 18.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Josef Woess](https://appshunter.io/developer/1597520399) |

## What reviewers say

### Electrical Formulator

[App page](https://appshunter.io/ios/app/electrical-formulator/id299749412)

This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.

**Highlights:** Over 100 electrical formulas, Save and organize results, Share results via email or print, Access most-used and recent formulas, Supports US/Imperial and metric units, Formula categories for batteries, motors, transformers, and more

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features For Electrcial | $1.99 | one-time |


### 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 Electrical Formulator free?

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

### Is CircuitShepherd free?

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

### Which has better reviews, Electrical Formulator or CircuitShepherd?

Electrical Formulator is rated higher. Electrical Formulator averages 5.0 out of 5 from 1 ratings, while CircuitShepherd averages 1.5 from 2 ratings.

### Do Electrical Formulator or CircuitShepherd have ads?

Neither Electrical Formulator nor CircuitShepherd shows ads.

### Which is updated more often, Electrical Formulator or CircuitShepherd?

Electrical Formulator ships an update every 2 months, and CircuitShepherd every 3 weeks. Most recently, Electrical Formulator was updated on October 6, 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.*