# HMI Draw, native HMI/SCADA development environment

> Native iOS app for industrial HMI/SCADA development and real-time process monitoring. (iPhone/iPad app by SweetWilliam, S.L..)

- Source: https://appshunter.io/ios/app/hmi-draw-native-hmiscada-development-environment/id604708439 (this page in markdown: same URL + `.md`)
- Developer: [SweetWilliam, S.L.](https://appshunter.io/developer/324515283)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 3.00/5 from 7 App Store ratings · 15 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 18 MB
- Languages: American English, European Spanish
- Released: 2013-08-06
- Data updated: 2026-06-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/hmi-draw-native-hmiscada-development-environment/id604708439/reviews.md

## What is HMI Draw, native HMI/SCADA development environment?

HMI Draw is a *native* iOS application for creating Human Machine Interfaces for real time monitoring and control of industrial PLC based systems and processes. Data is presented in highly customizable page layouts much like a presentations app. 

Who's this for.

The app is aimed at automation engineers or industrial machine manufacturers on many sectors including but not limited to building automation, industrial processing, power plants, water plants, industrial equipment, transportation and so on, who want to provide instant, reliable access to real time data right from iOS devices.

What you'll get for the price of the app.

HMI Draw allows you to create efficient, advanced, highly responsive "Human Machine Interfaces" right on your iPad screen with unprecedented ease of use and fun. The HMI Draw app is fully native and supports all major Programmable Logic Controller (PLC) brands. For the price of the app (FREE) you can *fully* develop and test projects of any complexity. No restrictions on number of pages, tags or PLCs are applied at this stage. You only pay for project activations when you are ready to deploy to end users.

HMI Draw essential Features.

- Very fast, launches and connects immediately regardless of project size.
- All data types including Strings, Arrays and Dictionaries fully supported.
- HMI Projects are edited on-screen as you run and monitor your process.
- You can export and edit your project files as text on your PC or Mac.
- Export/import asset files such as images, pdfs or audio files from HMI Draw to your PC or Mac. 
- Optional project storage in the cloud and easy deployment to end users devices.
- Native PLC communication protocols. Connections are performed with no intermediate servers or boxes.
- Major PLC brands supported, including: Allen Bradley, Mitsubishi, Omron, Opto 22, Schneider Electric, Siemens, Wago.
- TCP/IP based security.

Getting Started: creating a HMI Pad project.

Projects are created like a mix of PowerPoint and Excel. The concept is quite simple. You lay out elements such as Sliders, Switches, Buttons, Images, Text Fields, Knobs, Trends, Gauges, Bar Indicators, Web browser, Array pickers, even Gesture Recognizers and much more onto pages. You connect on-screen objects with iPad sensors and PLC tags through simple links or powerful expressions. That's it !!. The result is a stunning, dynamic, real-time presentation of your PLC controlled process as you'd never imagined.

Examples Ready for You.

Explore the examples and take the liberty to make changes on them. Create your own test projects from scratch or based on the examples. HMI Draw will comprehensively tell you what inconsistencies or problems there may be in your project as you build them. New examples are being added on a regular basis or by user request.

What's Next.

There’s a lot more that we haven’t mentioned here, such as the page navigation interface, the embedded file server, the model browser, the model seeker, the automatic expression completer, the inspector viewer, alarm notifications, iPad sensors, bar code scanner, user access levels, password on launch, PLC validation codes, individual tag diagnostics, background processing, automatic network switching, and much much more. You surely will identify some of these features by just exploring the app, but the single source where everything is covered is the HMI Draw Reference Manual. Feel free to download it from our site and look at the full possibilities, you’ll love the product.

Technical Support.

We provide a free on-line support service based on public forums on our web site:
http://www.sweetwilliamsl.com/support/forums 

Or through direct email:
support@sweetwilliamsl.com.

We also hold a public youTube channel at:
http://www.youtube.com/hmipad. 

Feel free to direct your questions, suggestions or feedback to any of the above. We'll be happy to hear from you.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (10 of 15)

All indexed reviews: https://appshunter.io/ios/app/hmi-draw-native-hmiscada-development-environment/id604708439/reviews.md

### 1/5 — I can’t open the app

*2022-01-05, version 3.0.3*

I’m unable to open the app it immediately crashes. Any ideas on how to fix?

### 1/5 — Crashes

*2021-03-18, version 3.0.3*

Last update was 5 years ago and the app won’t launch

### 5/5 — An awesome piece of software!

*2020-11-13, version 3.0.3*

I’ve been using it for several years now. Very smooth gauges. It’s easy to make a page look impressive. I love the cloud based file transfer.

### 1/5 — iOS 14

*2020-09-22*

Won’t open just crashes

### 1/5 — Crashes won’t open

*2020-08-18, version 3.0.3*

iPhone 7
iOS 13.5

### 1/5 — Gran estafa

*2018-04-23, version 3.0.3*

Teniendo en cuenta el trabajo de que cuesta desarrollar la aplicacion cliente de un hmi estos señores nos han dejado colgados a todos con la ultima actualización del scada mobile y el modbus gem. Unos auténticos piratas. Ya ni siquiera esta en la app store. Si lo usas para jugar o eres estudiante y lo usas para hacer pruebas muy bien. Ahora no creo que tranquen a ningún profesional de nuevo porque a todos nos han dejado con el culo al aire.

### 1/5 — Que no te atrapen

*2018-04-23, version 3.0.3*

No comprar absolutamente nada de SWEETWILLIAM S.L. he perdido miles de euros con su aplicación MODBUS GEM que dejaron de actualizar después de venderla por 23.99 y encima retirado de la Apple store. MUCHAS GRACIAS!

### 4/5 — Best HMI app

*2017-05-21, version 3.0.3*

Hi, this is the best app to operate as a native HMI for many brands of PLC and other but unfortunately will not continue to developed.

### 3/5 — Status?

*2015-10-20, version 3.0.3*

The Sweetwilliam website has been down for two weeks. We are putting our Opto22 project on hold till things become clear. Anyone know how to contact developer?

### 5/5 — Operatividad y movilidad para la industria de la automatización

*2014-06-12, version 2.2.0*

Ágil, rápida, eficaz, simplemente genial, aporta un plus a la automatización.

## Frequently asked questions about HMI Draw, native HMI/SCADA development environment

### What is HMI Draw?

HMI Draw is a native iOS application designed for creating Human Machine Interfaces (HMIs) and SCADA systems for real-time monitoring and control of industrial processes.

### Is HMI Draw free to use?

Yes, HMI Draw is free to download and use for developing and testing projects of any complexity. You only pay for project activations when you are ready to deploy to end users.

### What PLCs does HMI Draw support?

HMI Draw supports major PLC brands including Allen Bradley, Mitsubishi, Omron, Opto 22, Schneider Electric, Siemens, and Wago, using native communication protocols.

### Can I edit HMI Draw projects on my computer?

Yes, you can export your HMI Draw project files as text to edit on your PC or Mac. You can also export and import asset files like images and PDFs.

### How often is HMI Draw updated?

The latest version of HMI Draw is 3.0.3, last updated on August 1, 2015. New examples are added regularly, and updates are also made based on user requests.

### What devices is HMI Draw compatible with?

HMI Draw is compatible with iPhone, iPad, and iPod devices and has an age rating of 4+.

### Does HMI Draw have ads?

No, HMI Draw does not contain advertisements. The application is free to use for development and testing.

### How does HMI Draw compare to other HMI development tools?

HMI Draw offers a native iOS experience for development and testing, with direct PLC communication and on-screen editing. It allows for free development and testing, with a pay-for-activation model for deployment.

## Version history (last 5 releases)

### 3.0.3 — 2015-08-01

This app has been updated by Apple to display the Apple Watch app icon.

Bug Fixes

### 3.0.2 — 2015-07-10

New REST object gives flexible support for getting and storing data to external web services.

### 3.0.1 — 2015-02-23

Fixes a bug preventing big recipe files from loading.
Fixes a bug in HMI View that prevented remote assets to be deleted.

### 3.0.0 — 2014-12-09

Remote storage is now using Apple Cloud Kit infrastructure.
More Examples.

### 2.3.0 — 2014-08-12

New Features

Improved user interface and refactoring of internal components in anticipation to iOS8 support.

Bug Fixes

Solved an issue that caused the app to crash on 64bit devices when attempting to open an empty project.
Solved an issue with array pickers that could cause the app to crash in some circumstances.
Solved an issue with the expressions keyboard being partially visible on portrait mode
Other minor fixes.

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## More apps by SweetWilliam, S.L.

- [HMI View, native HMI/SCADA end user viewer for HMI Draw projects](https://appshunter.io/ios/app/hmi-view-native-hmiscada-end-user-viewer-for-hmi-draw-projects/id662858917)

All apps by SweetWilliam, S.L.: https://appshunter.io/developer/324515283

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*