About me

I'm developing apps for the iPhone in my spare time. Here you can find some information about these apps.


'nuff said.

Lights & Switches

A universal remote control for home automation systems, currently supports Domoticz and Philips hue.



A high-contrast, very large date and time display. Very useful if you take a picture of it with a digital camera and later use that picture to correct the EXIF date and timestamp.



Just another Remember-Me app - annotate photos with up to two lines of text.




Data management for Philips Hue.




Quick grade calculation tool for the teacher in you!



EVE Trader

(Now defunct) market analysis tool for the online game EVE Online.

 It's dead, Jim.


Development Blog

Lights & Switches 1.1.1

Just a quick update, I released a new version that, besides fixing some stability issues, introduces a new way to quickly move controls around - when viewing the details for a control in edit mode, tap the buttons in the top row to move the control to the beginning or end of the active or passive sections.
Also the divider between the active and passive sections can be moved in front or after the currently selected control.
The passive section moves with you from page to page. That means you can put controls on the inactive section (the bottom, colorless part), switch to another page and move the controls back to the active area.
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Lights & Switches - Out Now!

Lights & Switches: 1.0.1 release

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Lights & Switches - Back to Business

I have created a new iOS app that gives me basic control of my Domoticz and Philips Hue installation, like flipping switches, setting values, reading out sensors and other information and viewing cameras.


It's not designed to be the one-and-all controller of all features of each system . You can rather think of it as a universal remote control where you can even arrange the layout of the buttons to your liking.


It's still a bit rough around the edges, but it works well for me and I'd like to invite you to my first public beta test.


Lights & Switches is available in Test Flight:


There is also a Discord available for discussions


I'd be happy if you would give the app a try and let me know what you think.

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