I build
products
and ship
them.

I built an app, I build websites that hold up, and I run a shop for my own products.

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What I do.

  • Direction

    The problem, the priorities, the flow. Decided before the first screen exists.

    Explore Starpolar
  • UX/UI

    Screens and flows for apps and websites. One system, from the first sketch to the store listing.

    Explore Keltrix
  • Code

    Flutter for iOS and Android, custom backend services and websites in HTML, CSS and JavaScript.

    See the work
  • Launch

    App Store and Google Play, a live website and a brand around it.

    Starpolar, live

My projects.

Built by learning.Shipped by finishing.

I started building websites with HTML and CSS at the age of 14. At 17, I started Starpolar, and at the age of 18 I finally launched it. Since then I’ve been working on the app, website and shop. I finished school with my Matura in 2026.

Outside my projects, I’m part of the local volunteer fire brigade. I joined at twelve and am now also trained to use breathing apparatus.

  1. 14First HTML & CSS
  2. 17Building Starpolar
  3. 18Starpolar shipped

Vorarlberg, Austria

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“I had no clear plan for how I wanted my website to look. Gabriel absolutely nailed it. I was impressed within the first second, and I’d love to work with him again.”

Good to know.

What is Starpolar?

Starpolar is my app for iOS and Android. It brings routines, planning, training, nutrition, shopping and finance together. I lead its concept, design, app, backend and release.

Do you work alone?

I develop and lead Starpolar, from product concept and design to the app, backend and release.

Where are you based?

Vorarlberg, Austria. I work in German and English.

Do you take on client work?

My focus is Starpolar. I've also built client projects such as Keltrix and Swiss Dental Alliance. If you have a suitable app or website project, get in touch.

What do you build with?

Apps with Flutter and Dart. For Starpolar, I also develop Python and Flask services with MySQL. Firebase handles authentication and push notifications, among other functions. I build websites with HTML, CSS and JavaScript.

Live on iOS & Android

All in on Starpolar.

The app is live on iOS and Android. My focus now spans its continued development, the website and the Starpolar collection.

Open Starpolar Download the app