# Fault Current Calculator vs myOneFlow

The clearest difference is in-app purchases: myOneFlow at none against Fault Current Calculator's 2. Fault Current Calculator's advantage is rating (3.1 vs 2.8). 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. myOneFlow asks for nothing beyond the download.

Fault Current Calculator holds the better App Store score, 3.1 against 2.8. Both are backed by a comparable volume of ratings — 23 and 8 respectively.

Fault Current Calculator ships an update every 4 months, myOneFlow every 3 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Fault Current Calculator | myOneFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (23 ratings)](https://appshunter.io/ios/app/fault-current-calculator/id647477910/reviews)** | [2.8 (8 ratings)](https://appshunter.io/ios/app/myoneflow/id1553259236/reviews) |
| Number of ratings | **23** | 8 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Freemium | **Free** |
| Size | 25 MB | 24 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Cooper Bussmann, LLC](https://appshunter.io/developer/609315535) | [Empyra.com, Inc.](https://appshunter.io/developer/352917964) |

## 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 |


### myOneFlow

[App page](https://appshunter.io/ios/app/myoneflow/id1553259236)

This app streamlines document submission, event registration, and appointment scheduling into a single, user-friendly mobile platform. Access all your important tasks and information conveniently from your smartphone or tablet.

**Highlights:** Document submission, Event registration, Appointment scheduling, Mobile access, Improved user experience

**Features:** macOS Compatibility

**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 myOneFlow free?

myOneFlow is free to download, with no in-app purchases.

### Which has better reviews, Fault Current Calculator or myOneFlow?

Fault Current Calculator is rated higher. Fault Current Calculator averages 3.1 out of 5 from 23 ratings, while myOneFlow averages 2.8 from 8 ratings.

### Do Fault Current Calculator or myOneFlow have ads?

Neither Fault Current Calculator nor myOneFlow shows ads.

### Which is updated more often, Fault Current Calculator or myOneFlow?

Fault Current Calculator ships an update every 4 months, and myOneFlow every 3 months. Most recently, Fault Current Calculator was updated on October 2, 2026 and myOneFlow on October 7, 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.*