Dr. René Wahl

Perfect Software "Made in Germany"


Please write in English or German.


I develop software under the following premises.


To maximize the security of my software, I like to develop components myself and not rely on dubious third-party libraries that can pose potential security risks.


To ensure stability, my software is constructed in such a way that the complexity remains manageable. If errors are discovered by users, my apps are usually updated within 24 hours.

Ease of use

In order to be able to guarantee user-friendliness even with software with a large number of functions and options, I orient myself towards modern UI concepts and common sense.

Proactive support

User satisfaction is really important to me - and that's no empty phrase. Questions from reviews in sales portals or mail inquiries seeking help are usually answered within 24 hours.


None of my software requires registration or collects data from users. It is very important to me that software works without spying on the user in the background.


I need to see a deeper meaning in my software. That's why I don't develop any software that, for example, only has the purpose of presenting advertisements in order to generate revenue.

Current Reference Projects

The following actual projects are my most popular in-house developments from project planning through graphic design to implementation of the program code and subsequent verification and validation.


all 4 hue

The third-party reference app for Android, iOS, MacOS and Windows 10 for perfect automation and full control of up to 5 Philips Hue lighting systems in the local WLAN.


Don't Push the Wrong Button 1 & 2

An exciting puzzle and patience game that aims to defuse virtual bombs. The 3D representation is done via the Open-GL interface.


NFC Switch

An Android app that can be used to toggle smartphone NFC functionality on and off. The special feature here is that this is technically only possible via root permissions.



Feel free to contact me by mail in English or German if you are interested in working with me.


Please write in English or German.