# Fault Current Calculator vs Leviton Smart Sensor

The clearest difference is review sentiment: Leviton Smart Sensor at 67% against Fault Current Calculator's 0%. Leviton Smart Sensor also leads on rating (3.9 vs 3.1) and in-app purchases (none vs 2). 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. Leviton Smart Sensor asks for nothing beyond the download.

Leviton Smart Sensor holds the better App Store score, 3.9 against 3.1. Both are backed by a comparable volume of ratings — 23 and 9 respectively. Written reviews point the same way: 0% of Fault Current Calculator's written reviews are positive against 67% of Leviton Smart Sensor's.

Fault Current Calculator ships an update every 4 months, Leviton Smart Sensor every 5 months. The most recent releases landed on August 20, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Fault Current Calculator | Leviton Smart Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (23 ratings)](https://appshunter.io/ios/app/fault-current-calculator/id647477910/reviews) | **[3.9 (9 ratings)](https://appshunter.io/ios/app/leviton-smart-sensor/id1482312262/reviews)** |
| Number of ratings | **23** | 9 |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Freemium | **Free** |
| Size | 25 MB | 31 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) | [Leviton Manufacturing Co. Inc.](https://appshunter.io/developer/877607790) |

## 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 |


### Leviton Smart Sensor

[App page](https://appshunter.io/ios/app/leviton-smart-sensor/id1482312262)

Configure and interact with Leviton Smart Sensor products. Tailor sensor settings to specific space requirements and comply with energy codes. Suitable for installers, building maintenance, and end-users.

**Highlights:** Configure smart sensor products, Set space requirements, Comply with energy codes, Interact with sensors, Suitable for installers and end-users

**Features:** 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 Leviton Smart Sensor free?

Leviton Smart Sensor is free to download, with no in-app purchases.

### Which has better reviews, Fault Current Calculator or Leviton Smart Sensor?

Leviton Smart Sensor is rated higher. Fault Current Calculator averages 3.1 out of 5 from 23 ratings, while Leviton Smart Sensor averages 3.9 from 9 ratings.

### Do Fault Current Calculator or Leviton Smart Sensor have ads?

Neither Fault Current Calculator nor Leviton Smart Sensor shows ads.

### Which is updated more often, Fault Current Calculator or Leviton Smart Sensor?

Fault Current Calculator ships an update every 4 months, and Leviton Smart Sensor every 5 months. Most recently, Fault Current Calculator was updated on August 20, 2026 and Leviton Smart Sensor on September 11, 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.*