# Electrical Formulator vs Fault Current Finder

The clearest difference is rating: Electrical Formulator at 5.0 against Fault Current Finder's 4.2. Fault Current Finder's advantage is review sentiment (25% vs 15%) and ratings volume (5 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Electrical Formulator sells 1 one-off in-app purchase and Fault Current Finder sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Electrical Formulator holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Fault Current Finder has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 15% of Electrical Formulator's written reviews are positive against 25% of Fault Current Finder's, so the app with the better star average is not the one people write more warmly about.

Electrical Formulator ships an update every 2 months, Fault Current Finder every 5 weeks. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Electrical Formulator | Fault Current Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/electrical-formulator/id299749412/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/fault-current-finder/id1200115863/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | 15.2% of reviews | **25.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 16 MB | 23 MB |
| Requires iOS | 18.4 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Octagon Seven LLC](https://appshunter.io/developer/1200115862) |

## What reviewers say

### Electrical Formulator

[App page](https://appshunter.io/ios/app/electrical-formulator/id299749412)

This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.

**Highlights:** Over 100 electrical formulas, Save and organize results, Share results via email or print, Access most-used and recent formulas, Supports US/Imperial and metric units, Formula categories for batteries, motors, transformers, and more

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features For Electrcial | $1.99 | one-time |


### Fault Current Finder

[App page](https://appshunter.io/ios/app/fault-current-finder/id1200115863)

This tool models electrical distribution systems to calculate available fault current. It helps engineers and electricians ensure equipment is rated for maximum fault current, meeting NEC and IEC standards. Generate reports for compliance and safety.

**Highlights:** System modeling for fault current calculation, Evaluate equipment ratings (fuses, breakers), Supports NEC and IEC standards, One-line diagram approach, Per unit methodology for accuracy, Generate short circuit reports

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Report Generator | $19.99 | one-time |
| System Upgrade | $29.99 | one-time |


## Frequently asked questions

### Is Electrical Formulator free?

Electrical Formulator is free to download, with in-app purchases available.

### Is Fault Current Finder free?

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

### Which has better reviews, Electrical Formulator or Fault Current Finder?

Electrical Formulator is rated higher. Electrical Formulator averages 5.0 out of 5 from 1 ratings, while Fault Current Finder averages 4.2 from 5 ratings.

### Do Electrical Formulator or Fault Current Finder have ads?

Neither Electrical Formulator nor Fault Current Finder shows ads.

### Which is updated more often, Electrical Formulator or Fault Current Finder?

Electrical Formulator ships an update every 2 months, and Fault Current Finder every 5 weeks. Most recently, Electrical Formulator was updated on October 23, 2026 and Fault Current Finder on October 8, 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.*