# Electrical Calculations vs Normas ISO

The clearest difference is in-app purchases: Normas ISO at none against Electrical Calculations's 3. Normas ISO also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, update cadence and device support there is nothing between them.

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

Electrical Calculations ships an update every 3 weeks, Normas ISO every 6 weeks. The most recent releases landed on October 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | Normas ISO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (128 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | — |
| Number of ratings | **128** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 4 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [PROYECTOS Y CONSULTORIA DE INNOVACION TECNOLOGICA S.L.](https://appshunter.io/developer/1663891308) |

## 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 |


### Normas ISO

[App page](https://appshunter.io/ios/app/normas-iso/id1092161079)

**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 Normas ISO free?

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

### Do Electrical Calculations or Normas ISO have ads?

Electrical Calculations shows ads; Normas ISO does not.

### Which is updated more often, Electrical Calculations or Normas ISO?

Electrical Calculations ships an update every 3 weeks, and Normas ISO every 6 weeks. Most recently, Electrical Calculations was updated on October 20, 2026 and Normas ISO on September 21, 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.*