# Southwire® Voltage Drop Calc vs FuelCloud Installer

The clearest difference is rating: FuelCloud Installer at 5.0 against Southwire® Voltage Drop Calc's 4.6. FuelCloud Installer also leads on iOS requirement (11.0 vs 15.0). Southwire® Voltage Drop Calc's advantage is ratings volume (1.5K vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

FuelCloud Installer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Southwire® Voltage Drop Calc has 1.5K ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Southwire® Voltage Drop Calc | FuelCloud Installer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.5K ratings)](https://appshunter.io/ios/app/southwire-voltage-drop-calc/id440338420/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fuelcloud-installer/id1457090193/reviews)** |
| Number of ratings | **1.5K** | 1 |
| Positive reviews | 49.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 10 MB | 89 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [FuelCloud](https://appshunter.io/developer/1120340527) |

## What reviewers say

### Southwire® Voltage Drop Calc

[App page](https://appshunter.io/ios/app/southwire-voltage-drop-calc/id440338420)

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

**Highlights:** Determine wire size for voltage drop, Calculate voltage drop for conductor runs, Limit wire size by voltage drop, Limit wire size by NEC ampacity, Supports AWG and KCMIL sizes

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and useful
- 🚀 Great Quick Reference
- 👍 A must have app for electricians
- 👍 Love These
- 👍 Electrical Engineer

**What reviewers complain about**

- 🐛 Motor starting Voltage drop
- 🐛 Useless!
- 🐛 Won't work
- 🐛 How to use
- 🐛 Confused

**Reported bugs**

- Useless!
- Won't work
- How to use
- Confused
- Bad app

**Requested features**

- Motor starting Voltage drop calculation
- Metric wire size options


### FuelCloud Installer

[App page](https://appshunter.io/ios/app/fuelcloud-installer/id1457090193)

This app guides users through the installation of FuelCloud hardware with interactive prompts and step-by-step instructions. It ensures all setup steps are completed quickly and correctly, and provides access to hardware documentation.

**Highlights:** Step-by-step installation walkthrough, Interactive prompts and checklists, Hardware scanning and cell connectivity measurement, On-site testing and verification, Access to hardware documentation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Southwire® Voltage Drop Calc free?

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

### Is FuelCloud Installer free?

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

### Which has better reviews, Southwire® Voltage Drop Calc or FuelCloud Installer?

FuelCloud Installer is rated higher. Southwire® Voltage Drop Calc averages 4.6 out of 5 from 1.5K ratings, while FuelCloud Installer averages 5.0 from 1 ratings.

### Do Southwire® Voltage Drop Calc or FuelCloud Installer have ads?

Neither Southwire® Voltage Drop Calc nor FuelCloud Installer shows ads.

### Which is updated more often, Southwire® Voltage Drop Calc or FuelCloud Installer?

Southwire® Voltage Drop Calc ships an update every 2 months, and FuelCloud Installer every 2 months. Most recently, Southwire® Voltage Drop Calc was updated on October 24, 2026 and FuelCloud Installer on October 3, 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.*