# Electrical Calculations vs Quoc Duy App

The clearest difference is in-app purchases: Quoc Duy App at none against Electrical Calculations's 3. Quoc Duy App also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Electrical Calculations sells 3 in-app purchases, starting at $3.99 per 3 months. Quoc Duy App asks for nothing beyond the download.

Electrical Calculations ships an update every 2 weeks, Quoc Duy App monthly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | Quoc Duy App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (129 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | — |
| Number of ratings | **129** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 88 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Citek Technology JSC](https://appshunter.io/developer/1471100432) |

## What reviewers say

### Electrical Calculations

[App page](https://appshunter.io/ios/app/electrical-calculations/id993232048)

This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

**Highlights:** Wire size and voltage drop calculations, Power, current, and resistance calculations, Motor performance and connection diagrams, Electronic component calculations, Extensive unit conversions, PDF report generation, Support for IEC, CEI, NEC, CEC standards

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (3 months) | $3.99 | per 3 months |
| PRO Version (1 year) | $7.49 | per year |
| PRO Version (Lifetime) | $89.99 | one-time |


### Quoc Duy App

[App page](https://appshunter.io/ios/app/quoc-duy-app/id1578545801)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculations free?

Electrical Calculations is free to download, with in-app purchases available.

### Is Quoc Duy App free?

Quoc Duy App is free to download, with no in-app purchases.

### Do Electrical Calculations or Quoc Duy App have ads?

Electrical Calculations shows ads; Quoc Duy App does not.

### Which is updated more often, Electrical Calculations or Quoc Duy App?

Electrical Calculations ships an update every 2 weeks, and Quoc Duy App monthly. Most recently, Electrical Calculations was updated on October 24, 2026 and Quoc Duy App on October 27, 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.*