# Fault Current Calculator vs Workman's Calculator Pro

The clearest difference is review sentiment: Workman's Calculator Pro at 67% against Fault Current Calculator's 0%. Workman's Calculator Pro also leads on rating (4.1 vs 3.0) and in-app purchases (none vs 2). Fault Current Calculator's advantage is price (Free vs $1.99). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Fault Current Calculator is free to download; Workman's Calculator Pro costs $1.99 up front. Fault Current Calculator sells 2 in-app purchases, starting at $4.99 per month. Workman's Calculator Pro asks for nothing beyond the download.

Workman's Calculator Pro holds the better App Store score, 4.1 against 3.0. Both are backed by a comparable volume of ratings — 27 and 51 respectively. Written reviews point the same way: 0% of Fault Current Calculator's written reviews are positive against 67% of Workman's Calculator Pro's.

Fault Current Calculator ships an update every 4 months, Workman's Calculator Pro fortnightly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fault Current Calculator | Workman's Calculator Pro |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.0 (27 ratings)](https://appshunter.io/ios/app/fault-current-calculator/id647477910/reviews) | **[4.1 (51 ratings)](https://appshunter.io/ios/app/workmans-calculator-pro/id1188821288/reviews)** |
| Number of ratings | 27 | **51** |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#80** |
| Size | 25 MB | 12 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Cooper Bussmann, LLC](https://appshunter.io/developer/609315535) | [Bret Hardman](https://appshunter.io/developer/788803580) |

## What reviewers say

### Fault Current Calculator

[App page](https://appshunter.io/ios/app/fault-current-calculator/id647477910)

This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.

**Highlights:** Calculate available fault current, Size fuses and conductors, Generate service equipment labels, Single and three-phase system support, NEC® 110.24 compliance

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $4.99 | per month |
| Pro Annual Subscription | $39.99 | per year |


### Workman's Calculator Pro

[App page](https://appshunter.io/ios/app/workmans-calculator-pro/id1188821288)

**Currently charting:** #80 Top Paid · Utilities (US App Store)

This construction calculator simplifies complex measurements for tradespeople. It allows simultaneous calculations in feet, inches, yards, and meters, with an intuitive interface for fractions and decimals. Get accurate results quickly to save time on the job.

**Highlights:** Simultaneous multi-unit calculations (feet, inches, yards, meters), Intuitive fraction input with dynamic button display, Handles decimal multiplication, Multiple display options (feet, inches, decimals), Designed for speed and accuracy in construction

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

**In-app purchases:** none


## Frequently asked questions

### Is Fault Current Calculator free?

Fault Current Calculator is free to download, with in-app purchases available.

### Is Workman's Calculator Pro free?

Workman's Calculator Pro costs $1.99, with no in-app purchases.

### Which has better reviews, Fault Current Calculator or Workman's Calculator Pro?

Workman's Calculator Pro is rated higher. Fault Current Calculator averages 3.0 out of 5 from 27 ratings, while Workman's Calculator Pro averages 4.1 from 51 ratings.

### Do Fault Current Calculator or Workman's Calculator Pro have ads?

Neither Fault Current Calculator nor Workman's Calculator Pro shows ads.

### Which is updated more often, Fault Current Calculator or Workman's Calculator Pro?

Fault Current Calculator ships an update every 4 months, and Workman's Calculator Pro fortnightly. Most recently, Fault Current Calculator was updated on October 23, 2026 and Workman's Calculator Pro on October 24, 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.*