# Electrical Calculations vs CtrlSun

The clearest difference is rating: Electrical Calculations at 4.6 against CtrlSun's 1.0. Electrical Calculations also leads on ratings volume (128 vs 1). CtrlSun's advantage is in-app purchases (none vs 3) and ads (none vs shown). 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. CtrlSun asks for nothing beyond the download.

Electrical Calculations holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Electrical Calculations has 128 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | CtrlSun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (128 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ctrlsun/id1454687730/reviews) |
| Number of ratings | **128** | 1 |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 56 MB | 26 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) | [Solar Scope de Mexico sapi de cv](https://appshunter.io/developer/1454687729) |

## 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 |


### CtrlSun

[App page](https://appshunter.io/ios/app/ctrlsun/id1454687730)

This app simplifies downloading CFE electricity bills and consumption data. It includes updated CFE tariffs and solar insolation data for project sizing. Manage sales teams and clients with its integrated CRM.

**Highlights:** Download CFE bills and consumption, Updated CFE tariffs and solar data, Size residential and commercial solar projects, Solar CRM for sales and client tracking, Manage up to 5+ sellers and clients

**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 CtrlSun free?

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

### Which has better reviews, Electrical Calculations or CtrlSun?

Electrical Calculations is rated higher. Electrical Calculations averages 4.6 out of 5 from 128 ratings, while CtrlSun averages 1.0 from 1 ratings.

### Do Electrical Calculations or CtrlSun have ads?

Electrical Calculations shows ads; CtrlSun does not.

### Which is updated more often, Electrical Calculations or CtrlSun?

Electrical Calculations ships an update every 3 weeks, and CtrlSun every 3 weeks. Most recently, Electrical Calculations was updated on October 15, 2026 and CtrlSun on October 7, 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.*