About Me
I was born in Southern Germany and studied Applied Computer Science (Bachelor) at the University of Applied Sciences in Constance. I then moved to Stuttgart and studied in Computer Science & Media (Master) at the Stuttgart Media University. While having various interests in different areas of Computer Science, my biggest passion is developing apps.
Diarium
The most functional diary for Windows, macOS, iOS & Android lets you keep all your precious memories in one place and even reminds you to write down your experiences every day.
- Finalist of the Windows Developer Awards 2017 & 🏆 Winner of the Microsoft Store Awards 2024 🏆
- The most feature-rich diary app for Windows, macOS, iOS & Android, incl. Cloud Sync
- Daily notifications remind you to write down your memories
- Attach pictures, videos, audio, tags, people, ratings or locations
- Create own templates & insert them with 2 clicks
- Integration of weather, your photos & calendar appointments
- Integration of your social media activity (Facebook, Last.fm, Untappd, …) & fitness data (Google Fit, Fitbit, Strava, …)
- Optional password protection of your diary
- Backup your diary with importing & exporting the database
- Export your diary entries as Word file (.docx), webpage (.html), plain text (.txt) or JSON
WorkingHours
Easily track your work hours - organize, analyze and export them. Perfect for freelancer, hourly workers, employees or anyone else who wants to keep track of his or her working time.
- Cross-platform app, available for PC (Windows / macOS) & smartphone (iOS / Android) incl. Cloud Sync
- Control the timer without opening the app - via widgets, notifications, geofence & NFC tags
- Assign tasks or tags to work units
- Data export as Excel spreadsheet, CSV file or PDF invoice
- Auto-start/stop when arriving/leaving the work place
- Integrates into system calendar & Diarium diary app
- Special tags allow adjustments of the worked time and earnings
- Filter work units by tag and task
- Analyse working time and earnings via graphs
- Be productive with focus timers - WorkingHours reminds you when you finish a work session
GeoPhoto
Ever wondered where you took all your great photos? Or want to know where one specific photo was shot? No problem with GeoPhoto!
- View all your photos and videos on the world map
- Supports many file formats (JPG, HEIC, RAW, MP4 & more)
- Show your pictures and their recording locations in a great slideshow
- Add geotags to your photos and edit existing ones
- Automatic grouping of pictures
- Cloud support (view your OneDrive-pics on the map)
- View additional picture info based on EXIF tags
SubTotal
SubTotal is a tool for small business owners to quickly create PDF invoices. From wherever you are, with just a few clicks.
- Cross-platform app, available for PC (Windows / macOS) & smartphone (iOS / Android) incl. Cloud Sync
- Quickly create PDF invoices & send them to your clients
- Create invoices from your WorkingHours data with just one click
- Keep track of the invoices and mark them as paid once you get paid
- Personalize your PDF invoices with your company logo & color
AtomicClock
Ever wanted to know the exact current time to celebrate someone's birthday or New Year's Eve? Or to synchronize clocks? AtomicClock provides exact times based on NTP servers which are getting their time directly from atomic clocks!