# WireSizer vs Voltage Drop Pro

The clearest difference is update cadence: Voltage Drop Pro at every 2 months against WireSizer's every 5 months. Voltage Drop Pro also leads on price ($3.99 vs $4.99) and iOS requirement (17.5 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

WireSizer costs $4.99 and Voltage Drop Pro $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WireSizer ships an update every 5 months, Voltage Drop Pro every 2 months. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | WireSizer | Voltage Drop Pro |
| --- | --- | --- |
| Price | $4.99 | **$3.99** |
| Rating | **[4.5 (226 ratings)](https://appshunter.io/ios/app/wiresizer-dc-voltage-drop/id494748550/reviews)** | — |
| Number of ratings | **226** | — |
| Positive reviews | 83.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 2 MB | 15 MB |
| Requires iOS | 26.0 | **17.5** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Juggernaut Technology, Inc.](https://appshunter.io/developer/494748553) | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) |

## 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 Pro

[App page](https://appshunter.io/ios/app/voltage-drop-pro/id1601052433)

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

**In-app purchases:** none


## Frequently asked questions

### Is WireSizer free?

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

### Is Voltage Drop Pro free?

Voltage Drop Pro costs $3.99, with no in-app purchases.

### Do WireSizer or Voltage Drop Pro have ads?

Neither WireSizer nor Voltage Drop Pro shows ads.

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

WireSizer ships an update every 5 months, and Voltage Drop Pro every 2 months. Most recently, WireSizer was updated on October 13, 2026 and Voltage Drop Pro on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*