Crewboard allows you to manage your flight crew duties in one single app. It includes a detailed overview on your roster with notifications and statistics, simple ways to handle documents and check live flights.
Within the last years I have released various apps for different platforms. The latest and currently supported one can be found here.
Wodel is an unofficial Jodel app for Windows 10 devices. It allows you to stay in touch with your community, synchronizes your karma between your devices and has special features not available in the official apps.
Kleine Anzeigen is an unofficial eBay Kleinanzeigen app for your Windows device. Search through millions of ads in a dozen of categories either in the whole country or only in your area.
Tankometer is the only app for Symbian which helps you to find the cheapest gas station near you while being in Germany. The app uses the database provided by clever-tanken.de.
PitlaneOne is a Formula 1 app for your smartphone or PC. The app includes news, calendar, driver and team information, live data, race results and championship standings making it the perfect source for your pocket.