# ElectroMaster Pro vs Constropedia Area Volume Calc

The clearest difference is price: Constropedia Area Volume Calc at Free against ElectroMaster Pro's $99.99. ElectroMaster Pro's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 19 months). On ads and device support there is nothing between them.

Constropedia Area Volume Calc is free to download; ElectroMaster Pro costs $99.99 up front. Constropedia Area Volume Calc sells 1 one-off in-app purchase. ElectroMaster Pro asks for nothing beyond the download.

ElectroMaster Pro ships an update every 2 months, Constropedia Area Volume Calc every 19 months. The most recent releases landed on June 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ElectroMaster Pro | Constropedia Area Volume Calc |
| --- | --- | --- |
| Price | $99.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/electromaster-pro/id1502014971/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 19 months |
| Monetization | Paid | — |
| Size | 128 MB | 40 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Terracciano](https://appshunter.io/developer/1159639539) | [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) |

## What reviewers say

### ElectroMaster Pro

[App page](https://appshunter.io/ios/app/electromaster-pro/id1502014971)

This comprehensive electro-technical tool offers practical and theoretical knowledge for students and professionals. It covers fundamental concepts, complex calculations, and advanced electrical engineering topics, all within an ad-free interface.

**Highlights:** Ohm's Law and circuit calculations, Resistor and capacitor configurations, Power and voltage calculations, Motor and transformer concepts, Wire sizing and power loss analysis, Resistor color code lookup, Basic and advanced electrical theory

**Features:** macOS Compatibility

**In-app purchases:** none


### Constropedia Area Volume Calc

[App page](https://appshunter.io/ios/app/constropedia-area-volume-calc/id6504486155)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Area Volume Pro | $0.99 | one-time |


## Frequently asked questions

### Is ElectroMaster Pro free?

ElectroMaster Pro costs $99.99, with no in-app purchases.

### Is Constropedia Area Volume Calc free?

Constropedia Area Volume Calc is free to download, with in-app purchases available.

### Do ElectroMaster Pro or Constropedia Area Volume Calc have ads?

Neither ElectroMaster Pro nor Constropedia Area Volume Calc shows ads.

### Which is updated more often, ElectroMaster Pro or Constropedia Area Volume Calc?

ElectroMaster Pro ships an update every 2 months, and Constropedia Area Volume Calc every 19 months. Most recently, ElectroMaster Pro was updated on June 10, 2026 and Constropedia Area Volume Calc on September 30, 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.*