# Fault Current Calculator vs ArcWalk

The clearest difference is rating: ArcWalk at 5.0 against Fault Current Calculator's 3.0. ArcWalk also leads on in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 4 months). Fault Current Calculator's advantage is ratings volume (27 vs 2) and iOS requirement (14.0 vs 17.0). On price, ads and device support there is nothing between them.

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

ArcWalk holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Fault Current Calculator has 27 ratings behind it against 2, so its average is the more settled of the two.

Fault Current Calculator ships an update every 4 months, ArcWalk every 3 weeks. The most recent releases landed on October 23, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Fault Current Calculator | ArcWalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (27 ratings)](https://appshunter.io/ios/app/fault-current-calculator/id647477910/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/arcwalk/id6798283416/reviews)** |
| Number of ratings | **27** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 25 MB | 45 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Cooper Bussmann, LLC](https://appshunter.io/developer/609315535) | [Synfra Technologies, LLC](https://appshunter.io/developer/6798283418) |

## 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 |


### ArcWalk

[App page](https://appshunter.io/ios/app/arcwalk/id6798283416)

This app streamlines industrial-grade field data collection for electrical engineering studies. It guides users through structured walk-downs, capturing technical data and photographic evidence for Arc Flash, SCCR, and Coordination studies. The tool ensures accurate, verified, and correctly formatted data for professional analysis.

**Highlights:** Equipment-specific data entry wizards, Topological hierarchy mapping, Digital panel schedule generation, Technical photo documentation, Project budgeting and estimation, Offline-first synchronization, Encrypted project data export

**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 ArcWalk free?

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

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

ArcWalk is rated higher. Fault Current Calculator averages 3.0 out of 5 from 27 ratings, while ArcWalk averages 5.0 from 2 ratings.

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

Neither Fault Current Calculator nor ArcWalk shows ads.

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

Fault Current Calculator ships an update every 4 months, and ArcWalk every 3 weeks. Most recently, Fault Current Calculator was updated on October 23, 2026 and ArcWalk on October 5, 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.*