# VDrop vs Voltage Drop & Wire Size

The clearest difference is in-app purchases: VDrop at none against Voltage Drop & Wire Size's 1. VDrop also leads on device support (3 vs 1) and ratings volume (3 vs 1). Voltage Drop & Wire Size's advantage is update cadence (every 2 weeks vs every 13 months). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Voltage Drop & Wire Size sells 1 one-off in-app purchase. VDrop asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for VDrop against 5.0 for Voltage Drop & Wire Size. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

VDrop ships an update every 13 months, Voltage Drop & Wire Size every 2 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | VDrop | Voltage Drop & Wire Size |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/vdrop/id1461666751/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/voltage-drop-and-wire-size/id6762137454/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 13 MB | 2 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nebulous LLC](https://appshunter.io/developer/1448637140) | [Alona Nesterenko](https://appshunter.io/developer/1890650834) |

## What reviewers say

### VDrop

[App page](https://appshunter.io/ios/app/vdrop/id1461666751)

This utility calculates voltage drop for electrical systems up to 600V. It provides detailed calculation outputs to help users verify results and build confidence in their electrical work. Custom voltage inputs are supported.

**Highlights:** Voltage drop calculations, Supports up to 600V, Custom voltage input, Detailed calculation outputs, User confidence building

**Features:** macOS Compatibility

**In-app purchases:** none


### Voltage Drop & Wire Size

[App page](https://appshunter.io/ios/app/voltage-drop-and-wire-size/id6762137454)

Calculate voltage drop and size wires for electrical projects. Evaluate existing conductors or find the optimal size for your needs. Supports various electrical systems and international standards.

**Highlights:** Voltage drop calculation, Wire sizing, NEC/AWG and Metric support, Ampacity calculations, Save and reopen calculations, Adjustable temperature units

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is VDrop free?

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

### Is Voltage Drop & Wire Size free?

Voltage Drop & Wire Size is free to download, with in-app purchases available.

### Which has better reviews, VDrop or Voltage Drop & Wire Size?

VDrop and Voltage Drop & Wire Size are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do VDrop or Voltage Drop & Wire Size have ads?

Neither VDrop nor Voltage Drop & Wire Size shows ads.

### Which is updated more often, VDrop or Voltage Drop & Wire Size?

VDrop ships an update every 13 months, and Voltage Drop & Wire Size every 2 weeks. Most recently, VDrop was updated on October 3, 2026 and Voltage Drop & Wire Size on October 14, 2026.

---

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