Please Read This Important Note  

We are happy to announce that as of late 2018, the guys at RiteControl have taken care of the apps. They have created a totally new set of apps based on the source code of the SweetWilliam apps. We encourage all HMI Draw and HMI View users to contact them at: 




Create advanced, highly responsible “Human Machine Interfaces” right on your iPad screen with unprecedented ease of use and fun, and deploy securely to your customer’s devices with a single tap.

Stunning HMI designs

Watch Video

Connect on-screen objects of your choice or custom images with iPad sensors and Programable Logic Controllers through the amazingly powerful expressions engine.

Create stunning presentations of your PLC controller process as you never did before.

Use Switches, Buttons, Images, Text Fields, Knob Controls, Trends, Graphs, Gauges, Bar Indicators, Sensors, even Gesture Recognizers and much more.


“The only real mobile HMI”

This is the only HMI app to consider if you want to go mobile. A absolutely great app!


Smooth, simple, professional and insanely fast.When it comes to small scada implementation, Siemens and Co. could take a look here. Looking forward to the next version.

“The best HMI app ever”

This is the native best HMI app for use with many brands PLC. Thanks for the app.

“Fine software”

I never have seen something like this. Even in industrial environment this can be usefull for monotoring tools. Great work !!!!

“Quick to prototype, great support”

I found this app looking for something to build a prototype and am amazed at how easy it is to build useful applications and demonstrations. The support has been outstanding too.

“Operativeness and mobility on the field”

Agile, fast, efficient. Simply brilliant, brings a plus to automation.

“Control from anywhere!”

Great app for controlling a process from anywhere…Very easy to set up and configure. Very easy to configure, with many examples making it easy to just copy and edit. Lots of tools for control to make pages interesting, highly functional and simple for an operator to understand without too much training. Great colour choices, logic expressions and graphics editor. The cloud hosting makes it so simple to make changes, then have a client download the new program. Excellent support from SweetWilliam. No question too trivial. Running this on both iPad and iPad mini talking to a ControlLogix processor in a regional location with great performance and surprisingly good network coverage.

“Awesome app”

As a designed beta tester I’ve been testing successive beta versions of this app and what these guys did and how well the app works is just incredible. There’s nothing even near on its field in the market. The way you create HMIs with it and the power of the system is just Awesome!


How It Works

  1. Drop Switches, Buttons, Images, Text Fields, Knob Controls, Trends, Gauges, Bar Indicators, even Gesture Recognizers and more into pages.
  2. Connect on-screen objects and iPad Sensors such as accelerometer, gravity, rotation, geo-position and more with Programmable Logic Controller (PLC) variables using expressions. 
  3. Upload your HMI projects to the cloud for temporary storage or pre-deployment.
  4. Deploy your projects to end users devices with a single tap on a button.


Controls Indicators



Competitive Advantage

  • 100% Native application. Designed from the ground up for maximum efficiency and speed.
  • Instant reaction to user interaction or PLC value changes. Great experience for end users.
  • Connects directly with your PLCs. No need for intermediate Boxes or PCs.
  • Native support for all major PLC brands.
  • High reliability and security.
  • Supported all iPad sensors such as accelerometer, rotation, gravity, geo-localization and more.
  • Fun to create your HMI projects with.
  • Ability to deploy your projects into end users devices with a single tap.





Your Benefits


  • No additional hardware is required.
  • An Apple iPad can replace expensive dedicated HMI touch screens.
  • You integrate with a novel solution that enhances your possibilities of creating new business.
  • Full mobility brings advantages to end users.
  • Remote project deployment and updates saves installation costs and expensive travel.
  • The HMI Pad system is free of economic risk. With an extremely low entry level cost, integrators do not pay until their projects are deployed to end users devices.


Learn More




Copyright © SweetWilliam, S.L 2009-2013. All rights reserved.
Science and Technology Park of the University of Girona, Emili Grahit, 91 (Narcís Monturiol building, Office P3-B03) 17003-Girona. Phone +34972183244