# Calctronics vs CircuitShepherd

The clearest difference is price: CircuitShepherd at Free against Calctronics's $4.99. CircuitShepherd also leads on update cadence (every 3 weeks vs every 2 months). Calctronics's advantage is rating (4.3 vs 1.5) and in-app purchases (none vs 1). On review sentiment, ratings volume, ads and device support there is nothing between them.

CircuitShepherd is free to download; Calctronics costs $4.99 up front. CircuitShepherd sells 1 in-app purchase, starting at $6.99 per month. Calctronics asks for nothing beyond the download.

Calctronics holds the better App Store score, 4.3 against 1.5. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Calctronics ships an update every 2 months, CircuitShepherd every 3 weeks. The most recent releases landed on September 9, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Calctronics | CircuitShepherd |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/calctronics-circuit-calc-pro/id1583600520/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/circuitshepherd/id1598606653/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 28 MB | 49 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anas Abubakar](https://appshunter.io/developer/1581534101) | [Josef Woess](https://appshunter.io/developer/1597520399) |

## What reviewers say

### Calctronics

[App page](https://appshunter.io/ios/app/calctronics-circuit-calc-pro/id1583600520)

This app provides a comprehensive suite of calculators and design tools for electronic engineering projects. It assists with circuit design, filter analysis, and calculations for various components like resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic tasks.

**Highlights:** Circuit design tools, Filter design with graph plotting, Resistor, capacitor, inductor design, Amplifier calculations, Ohm's Law calculator, 555 timer calculator, PCB trace width calculator

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

**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 Calctronics free?

Calctronics costs $4.99, with no in-app purchases.

### Is CircuitShepherd free?

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

### Which has better reviews, Calctronics or CircuitShepherd?

Calctronics is rated higher. Calctronics averages 4.3 out of 5 from 3 ratings, while CircuitShepherd averages 1.5 from 2 ratings.

### Do Calctronics or CircuitShepherd have ads?

Neither Calctronics nor CircuitShepherd shows ads.

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

Calctronics ships an update every 2 months, and CircuitShepherd every 3 weeks. Most recently, Calctronics was updated on September 9, 2026 and CircuitShepherd on June 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*