# HMI Draw, native HMI/SCADA development environment vs Electrical Calculations

The clearest difference is rating: Electrical Calculations at 4.6 against HMI Draw, native HMI/SCADA development environment's 3.0. Electrical Calculations also leads on review sentiment (87% vs 53%) and ratings volume (128 vs 7). HMI Draw, native HMI/SCADA development environment's advantage is ads (none vs shown) and iOS requirement (8.0 vs 15.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. HMI Draw, native HMI/SCADA development environment sells 3 one-off in-app purchases and Electrical Calculations sells 3 in-app purchases, starting at $3.99 per 3 months. Whichever you choose, the download price is not the number that matters.

Electrical Calculations holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Electrical Calculations has 128 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 53% of HMI Draw, native HMI/SCADA development environment's written reviews are positive against 87% of Electrical Calculations's.

HMI Draw, native HMI/SCADA development environment ships an update every 6 weeks, Electrical Calculations every 3 weeks. The most recent releases landed on September 28, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | HMI Draw, native HMI/SCADA development environment | Electrical Calculations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (7 ratings)](https://appshunter.io/ios/app/hmi-draw-native-hmiscada-development-environment/id604708439/reviews) | **[4.6 (128 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** |
| Number of ratings | 7 | **128** |
| Positive reviews | 53.3% of reviews | **86.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 18 MB | 56 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SweetWilliam, S.L.](https://appshunter.io/developer/324515283) | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) |

## What reviewers say

### HMI Draw, native HMI/SCADA development environment

[App page](https://appshunter.io/ios/app/hmi-draw-native-hmiscada-development-environment/id604708439)

Create custom industrial monitoring and control interfaces on iOS devices. Design dynamic dashboards with various elements and connect them to PLC systems. Develop and test projects for free, with activation fees for deployment.

**Highlights:** Customizable page layouts, Real-time monitoring and control, Support for major PLC brands, On-screen project editing, Export/import project and asset files, Cloud storage and deployment options, Native PLC communication protocols

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Activation for One Use | $149.99 | one-time |
| Activation for Five Uses | $449.99 | one-time |
| Activation for Ten Uses | $799.99 | one-time |


### 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 |


## Frequently asked questions

### Is HMI Draw, native HMI/SCADA development environment free?

HMI Draw, native HMI/SCADA development environment is free to download, with in-app purchases available.

### Is Electrical Calculations free?

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

### Which has better reviews, HMI Draw, native HMI/SCADA development environment or Electrical Calculations?

Electrical Calculations is rated higher. HMI Draw, native HMI/SCADA development environment averages 3.0 out of 5 from 7 ratings, while Electrical Calculations averages 4.6 from 128 ratings.

### Do HMI Draw, native HMI/SCADA development environment or Electrical Calculations have ads?

Electrical Calculations shows ads; HMI Draw, native HMI/SCADA development environment does not.

### Which is updated more often, HMI Draw, native HMI/SCADA development environment or Electrical Calculations?

HMI Draw, native HMI/SCADA development environment ships an update every 6 weeks, and Electrical Calculations every 3 weeks. Most recently, HMI Draw, native HMI/SCADA development environment was updated on September 28, 2026 and Electrical Calculations on October 15, 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.*