# Fault Current Calculator vs NX Lighting Controls

The clearest difference is rating: NX Lighting Controls at 3.6 against Fault Current Calculator's 3.0. NX Lighting Controls also leads on in-app purchases (none vs 2) and review sentiment (33% vs 0%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Fault Current Calculator sells 2 in-app purchases, starting at $4.99 per month. NX Lighting Controls asks for nothing beyond the download.

NX Lighting Controls holds the better App Store score, 3.6 against 3.0. Both are backed by a comparable volume of ratings — 27 and 27 respectively. Written reviews point the same way: 0% of Fault Current Calculator's written reviews are positive against 33% of NX Lighting Controls's.

Fault Current Calculator ships an update every 4 months, NX Lighting Controls every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fault Current Calculator | NX Lighting Controls |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (27 ratings)](https://appshunter.io/ios/app/fault-current-calculator/id647477910/reviews) | **[3.6 (27 ratings)](https://appshunter.io/ios/app/nx-lighting-controls/id962112904/reviews)** |
| Number of ratings | 27 | 27 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Freemium | **Free** |
| Size | 25 MB | 131 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Cooper Bussmann, LLC](https://appshunter.io/developer/609315535) | [Current Lighting Solutions, LLC](https://appshunter.io/developer/1494506816) |

## 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 |


### NX Lighting Controls

[App page](https://appshunter.io/ios/app/nx-lighting-controls/id962112904)

Configure and manage NX lighting control devices wirelessly from your iPhone or iPad. This utility app simplifies the setup process for your smart lighting system.

**Highlights:** Wireless device setup, Wireless device configuration, iPhone and iPad compatibility, Smart lighting management

**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 NX Lighting Controls free?

NX Lighting Controls is free to download, with no in-app purchases.

### Which has better reviews, Fault Current Calculator or NX Lighting Controls?

NX Lighting Controls is rated higher. Fault Current Calculator averages 3.0 out of 5 from 27 ratings, while NX Lighting Controls averages 3.6 from 27 ratings.

### Do Fault Current Calculator or NX Lighting Controls have ads?

Neither Fault Current Calculator nor NX Lighting Controls shows ads.

### Which is updated more often, Fault Current Calculator or NX Lighting Controls?

Fault Current Calculator ships an update every 4 months, and NX Lighting Controls every 2 months. Most recently, Fault Current Calculator was updated on October 23, 2026 and NX Lighting Controls 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.*