# Select Conductor Wire PRO vs Voltage Drop Calculator.

The clearest difference is review sentiment: Select Conductor Wire PRO at 100% against Voltage Drop Calculator.'s 33%. Select Conductor Wire PRO also leads on in-app purchases (none vs 1) and ads (none vs shown). Voltage Drop Calculator.'s advantage is update cadence (every 3 months vs every 19 months). On price and device support there is nothing between them.

Both are free to download. Voltage Drop Calculator. sells 1 one-off in-app purchase. Select Conductor Wire PRO asks for nothing beyond the download.

Select Conductor Wire PRO ships an update every 19 months, Voltage Drop Calculator. every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Select Conductor Wire PRO | Voltage Drop Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (413 ratings)](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064/reviews)** |
| Number of ratings | — | **413** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 51 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Caio Pinheiro](https://appshunter.io/developer/494446833) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Select Conductor Wire PRO

[App page](https://appshunter.io/ios/app/select-conductor-wire-pro/id1178386753)

This app simplifies electrical conductor dimensioning for professionals and students. It offers precise calculations based on international standards, with an intuitive interface for quick and accurate results. Future updates will expand its capabilities.

**Highlights:** Electrical conductor dimensioning, B1 and B2 installation methods, Compliance with IEC 60364 standards, Intuitive and easy-to-use interface, Educational and professional tool, Planned expansion of installation methods

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Select Conductor Wire PRO free?

Select Conductor Wire PRO is free to download, with no in-app purchases.

### Is Voltage Drop Calculator. free?

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

### Do Select Conductor Wire PRO or Voltage Drop Calculator. have ads?

Voltage Drop Calculator. shows ads; Select Conductor Wire PRO does not.

### Which is updated more often, Select Conductor Wire PRO or Voltage Drop Calculator.?

Select Conductor Wire PRO ships an update every 19 months, and Voltage Drop Calculator. every 3 months. Most recently, Select Conductor Wire PRO was updated on November 2, 2026 and Voltage Drop Calculator. on November 2, 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.*