# Southwire® Conversion Calc vs Arc Flash Label Calculator

The clearest difference is review sentiment: Arc Flash Label Calculator at 50% against Southwire® Conversion Calc's 0%. Arc Flash Label Calculator also leads on update cadence (fortnightly vs every 4 months) and device support (4 vs 1). Southwire® Conversion Calc's advantage is rating (4.2 vs 3.5) and in-app purchases (none vs 1). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Arc Flash Label Calculator sells 1 one-off in-app purchase. Southwire® Conversion Calc asks for nothing beyond the download.

Southwire® Conversion Calc holds the better App Store score, 4.2 against 3.5. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews complicate that: 0% of Southwire® Conversion Calc's written reviews are positive against 50% of Arc Flash Label Calculator's, so the app with the better star average is not the one people write more warmly about.

Southwire® Conversion Calc ships an update every 4 months, Arc Flash Label Calculator fortnightly. The most recent releases landed on October 2, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Southwire® Conversion Calc | Arc Flash Label Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/southwire-conversion-calc/id545756420/reviews)** | [3.5 (6 ratings)](https://appshunter.io/ios/app/arc-flash-label-calculator/id1363795374/reviews) |
| Number of ratings | 5 | **6** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 7 MB | 20 MB |
| Requires iOS | 16.6 | **9.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [Octagon Seven LLC](https://appshunter.io/developer/1200115862) |

## What reviewers say

### Southwire® Conversion Calc

[App page](https://appshunter.io/ios/app/southwire-conversion-calc/id545756420)

This utility app facilitates conversions between copper and aluminum electrical wiring. It allows users to calculate pricing, unit of measure, conversion factors, and weight based on product length. The app comes preloaded with numerous cable types for easy calculation.

**Highlights:** Copper to aluminum conversion, Aluminum to copper conversion, Pricing unit of measure calculation, Conversion factor calculation, Weight per product length calculation, Preloaded cable data

**Features:** macOS Compatibility

**In-app purchases:** none


### Arc Flash Label Calculator

[App page](https://appshunter.io/ios/app/arc-flash-label-calculator/id1363795374)

Calculate and generate arc flash labels for electrical equipment. Input data to produce PDF labels based on NFPA 70E standards, including incident energy and approach boundaries. Supports various circuit breakers, fuses, and voltage levels.

**Highlights:** Arc flash label calculation, NFPA 70E Annex D.4 methodology, Support for MCCB, ICCB, LSI, and fuses, Calculates Incident Energy, Arc Flash Boundary, Approach Boundaries, Generates PDF labels (4 per sheet), Supports low, medium, and high voltage equipment, Custom configurations for gap, distance, and time

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock High Voltage Arc Flash | $19.99 | one-time |


## Frequently asked questions

### Is Southwire® Conversion Calc free?

Southwire® Conversion Calc is free to download, with no in-app purchases.

### Is Arc Flash Label Calculator free?

Arc Flash Label Calculator is free to download, with in-app purchases available.

### Which has better reviews, Southwire® Conversion Calc or Arc Flash Label Calculator?

Southwire® Conversion Calc is rated higher. Southwire® Conversion Calc averages 4.2 out of 5 from 5 ratings, while Arc Flash Label Calculator averages 3.5 from 6 ratings.

### Do Southwire® Conversion Calc or Arc Flash Label Calculator have ads?

Neither Southwire® Conversion Calc nor Arc Flash Label Calculator shows ads.

### Which is updated more often, Southwire® Conversion Calc or Arc Flash Label Calculator?

Southwire® Conversion Calc ships an update every 4 months, and Arc Flash Label Calculator fortnightly. Most recently, Southwire® Conversion Calc was updated on October 2, 2026 and Arc Flash Label Calculator on October 23, 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.*