# Southwire® Conversion Calc vs Sudn' Impact

The clearest difference is update cadence: Sudn' Impact at weekly against Southwire® Conversion Calc's every 4 months. Sudn' Impact also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Southwire® Conversion Calc ships an update every 4 months, Sudn' Impact weekly. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Southwire® Conversion Calc | Sudn' Impact |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/southwire-conversion-calc/id545756420/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 14 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [Dayat Enterprises, INC](https://appshunter.io/developer/1092803122) |

## 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


### Sudn' Impact

[App page](https://appshunter.io/ios/app/sudn-impact/id6791570826)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Southwire® Conversion Calc free?

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

### Is Sudn' Impact free?

Sudn' Impact is free to download, with no in-app purchases.

### Do Southwire® Conversion Calc or Sudn' Impact have ads?

Neither Southwire® Conversion Calc nor Sudn' Impact shows ads.

### Which is updated more often, Southwire® Conversion Calc or Sudn' Impact?

Southwire® Conversion Calc ships an update every 4 months, and Sudn' Impact weekly. Most recently, Southwire® Conversion Calc was updated on October 2, 2026 and Sudn' Impact on October 12, 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.*