# Voltio Pro vs Electric Master

Voltio Pro and Electric Master are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Voltio Pro sells 6 in-app purchases, starting at $6.99 per month and Electric Master sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Voltio Pro ships an update every 2 weeks, Electric Master weekly. The most recent releases landed on September 8, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Voltio Pro | Electric Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (5 ratings)](https://appshunter.io/ios/app/electric-master-nec-panel/id6760935722/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 46 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CARLOS VIZCAINO MORENTIN](https://appshunter.io/developer/1847142629) | [Yusuf Can Samiloglu](https://appshunter.io/developer/1863275820) |

## What reviewers say

### Voltio Pro

[App page](https://appshunter.io/ios/app/voltio-pro/id6759069560)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plan Oficial | $6.99 | per month |
| Plan Maestro Mensual | $11.99 | per month |
| Plan Maestro Pro Mensual | $17.99 | per month |
| Plan Oficial Anual | $69.99 | per year |
| Plan Maestro Anual | $119.99 | per year |
| Plan Maestro Pro Anual | $179.99 | per year |


### Electric Master

[App page](https://appshunter.io/ios/app/electric-master-nec-panel/id6760935722)

This app provides a suite of electrical calculation tools for professionals, offering NEC-compliant solutions for wire sizing, voltage drop, and more. It works offline and allows for PDF export of results with custom branding.

**Highlights:** NEC-compliant electrical calculators, Offline functionality, Voltage drop calculations, Ampacity and wire sizing, PDF export with branding, Calculation history, Siri Shortcuts integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ElectriCalc Pro — Monthly | $9.99 | per month |
| ElectriCalc Pro — Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Voltio Pro free?

Voltio Pro is free to download, with in-app purchases available.

### Is Electric Master free?

Electric Master is free to download, with in-app purchases available.

### Do Voltio Pro or Electric Master have ads?

Neither Voltio Pro nor Electric Master shows ads.

### Which is updated more often, Voltio Pro or Electric Master?

Voltio Pro ships an update every 2 weeks, and Electric Master weekly. Most recently, Voltio Pro was updated on September 8, 2026 and Electric Master on August 27, 2026.

---

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