# WireSizer vs Voltage Drop Calculator.

WireSizer and Voltage Drop Calculator. both sit at 4.5 stars, but that hides the real split: 82% of WireSizer's written reviews are positive against 33% of Voltage Drop Calculator.'s. WireSizer also leads on in-app purchases (none vs 1) and ads (none vs shown). Voltage Drop Calculator.'s advantage is price (Free vs $4.99) and iOS requirement (17.6 vs 26.0). On rating, ratings volume, update cadence and device support there is nothing between them.

Voltage Drop Calculator. is free to download; WireSizer costs $4.99 up front. Voltage Drop Calculator. sells 1 one-off in-app purchase. WireSizer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for WireSizer against 4.6 for Voltage Drop Calculator.. Both are backed by a comparable volume of ratings — 227 and 413 respectively. Written reviews are what separate them: 82% of WireSizer's written reviews are positive against 33% of Voltage Drop Calculator.'s.

WireSizer ships an update every 5 months, Voltage Drop Calculator. every 3 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | WireSizer | Voltage Drop Calculator. |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.5 (227 ratings)](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550/reviews) | **[4.6 (413 ratings)](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064/reviews)** |
| Number of ratings | 227 | **413** |
| Positive reviews | **81.6% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 51 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Juggernaut Technology, Inc.](https://appshunter.io/developer/494748553) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### WireSizer

[App page](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550)

This app quickly calculates the correct DC wire gauge needed for any circuit. Simply input voltage, current, and length to determine the optimal wire size, considering voltage drop and ampacity limits. It's suitable for various DC systems up to 60 VDC.

**Highlights:** Instant DC wire size calculation, Voltage drop percentage selection, Ampacity limit checks, Supports various wire types and gauges, Adjustable for installation conditions, Materials list for selections

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick calculations
- 💡 ABYC-based calculations
- 👍 Interactive interface
- 👍 Essential tool for electrical projects

**What reviewers complain about**

- ⚠️ Limited to 50VDC
- ⚠️ No AC calculations
- ⚠️ Lacks advanced features
- ⚠️ Some users find it useless
- ⚠️ Voltage drop percentage requires conversion

**Requested features**

- AC calculation for higher voltages
- Support for higher DC voltages (e.g., 150VDC)
- Support for AC voltages (e.g., 240VAC)
- Include actual voltage drop on final screen
- More variables like wire ampacity and cables in a bundle


### Voltage Drop Calculator.

[App page](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064)

Calculate voltage drop and wire size using both NEC and IEC standards. Supports various load types, conductor materials, and system configurations. Generates detailed reports for electricians, engineers, and contractors.

**Highlights:** NEC and IEC dual standards, Voltage drop and wire sizing calculations, Support for continuous load and corrections, Copper or Aluminum conductor options, Single-phase and three-phase systems, Automatic compliance checks, PDF report generation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Go Pro | $4.99 | one-time |


## Frequently asked questions

### Is WireSizer free?

WireSizer costs $4.99, with no in-app purchases.

### Is Voltage Drop Calculator. free?

Voltage Drop Calculator. is free to download, with in-app purchases available.

### Which has better reviews, WireSizer or Voltage Drop Calculator.?

Voltage Drop Calculator. is rated higher. WireSizer averages 4.5 out of 5 from 227 ratings, while Voltage Drop Calculator. averages 4.6 from 413 ratings.

### Do WireSizer or Voltage Drop Calculator. have ads?

Voltage Drop Calculator. shows ads; WireSizer does not.

### Which is updated more often, WireSizer or Voltage Drop Calculator.?

WireSizer ships an update every 5 months, and Voltage Drop Calculator. every 3 months. Most recently, WireSizer was updated on November 1, 2026 and Voltage Drop Calculator. on October 31, 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.*