# Electrical Calculations vs Energy Viewer

The clearest difference is review sentiment: Electrical Calculations at 87% against Energy Viewer's 40%. Electrical Calculations also leads on rating (4.6 vs 2.0) and update cadence (every 2 weeks vs every 2 months). Energy Viewer's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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. Energy Viewer asks for nothing beyond the download.

Electrical Calculations holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Electrical Calculations has 129 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 87% of Electrical Calculations's written reviews are positive against 40% of Energy Viewer's.

Electrical Calculations ships an update every 2 weeks, Energy Viewer every 2 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | Energy Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (129 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/energy-viewer/id1436015214/reviews) |
| Number of ratings | **129** | 4 |
| Positive reviews | **86.7% of reviews** | 40.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 56 MB | 45 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) | [Fimer Spa](https://appshunter.io/developer/1499080011) |

## 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 |


### Energy Viewer

[App page](https://appshunter.io/ios/app/energy-viewer/id1436015214)

Monitor your solar power system's output and home's energy consumption remotely. Track energy flows, manage your e-Car charging, and receive in-app notifications for plant status and updates.

**Highlights:** Remote solar system monitoring, Home energy consumption tracking, E-Car charging management, In-app notifications, Firmware updates, PV plant performance monitoring

**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 Energy Viewer free?

Energy Viewer is free to download, with no in-app purchases.

### Which has better reviews, Electrical Calculations or Energy Viewer?

Electrical Calculations is rated higher. Electrical Calculations averages 4.6 out of 5 from 129 ratings, while Energy Viewer averages 2.0 from 4 ratings.

### Do Electrical Calculations or Energy Viewer have ads?

Electrical Calculations shows ads; Energy Viewer does not.

### Which is updated more often, Electrical Calculations or Energy Viewer?

Electrical Calculations ships an update every 2 weeks, and Energy Viewer every 2 months. Most recently, Electrical Calculations was updated on October 24, 2026 and Energy Viewer on October 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.*