Hi, I'm Sebastian. I build simple, privacy-first software for your everyday life.
I'm a software developer based in Germany. I build independent digital applications like Lebenssignal, Librisync, Mietfolio, Tavena, and FreizeitOptimierer — focusing on utility, speed, and privacy.
My Products
Lebenssignal
A daily safety check-in app for people living alone. Designed with privacy at its core – no tracking, no ads.
Librisync
An app for digitally organizing your books. Easily catalog, quickly find – designed with a focus on clarity and ease of use.
Mietfolio
A SaaS app for private landlords: manage utility costs, documents, tenant portal, and deadlines in one clear system.
Tavena
An app for shared expenses: groups, couples, and friends keep track of shared costs – clear and fair.
FreizeitOptimierer
A smart vacation planning app: strategically combine public holidays, bridge days, and vacations for maximum time off.
Craftsmanship, experience, and clean software
As an independent developer, I build products out of real everyday needs: safety at home and on the move, less friction in personal organization, and a respectful approach to data. Instead of rebuilding heavy platforms, I concentrate on focused tools that solve one task reliably and remain understandable.
All my apps follow the same standard: thoughtful design, lean engineering, and privacy without advertising or tracking logic. From initial idea and UI design to the final line of code, every product is built by my own hands.
Privacy First
No ads, no marketing tracking, no unnecessary data collection. Your data belongs to you.
Focus & Speed
Clear interfaces without clutter – optimized for fast loading times and intuitive use.
Developed in Germany
Concept, UI design, and software engineering are handled entirely by me personally.
About Me
I believe technology should serve people, not the other way around. My goal is to build digital tools that are helpful, reliable, and respectful of your personal data.
As a software developer based in Germany, I stand for software quality without unnecessary complexity. I use modern web and app technologies to create long-lasting software that brings clarity to everyday life.