Stefan Studhalter

Solo developer from Switzerland running Stivio.

I love turning ideas into products especially tools that solve problems I've experienced myself.

Stivio

Stivio is a one-person software business from Switzerland.

I build digital products from idea to launch – focused on tools that actually work for real humans, not just metrics.

Currently building Denly, a productivity app for neurodivergent minds.

Bootstrapped. Privacy-first. No VC. Slow growth on purpose.

Denly
Denly is a productivity app that doesn't punish you for being human.Most tools assume consistent energy and linear progress. My ADHD brain doesn't work like that. So I built something different.What makes Denly different:- No streaks you can lose- No "overdue = failure" pressure- Adapts to your daily energy level (12 Aurora modes)- Progress that only moves forwardBuilt as a solo founder in Switzerland. Privacy-first, no VC, slow & sustainable growth.Currently in Early Access with Founding Member pricing.
2026 present, Early Access<$100/mo

Recent activity

I Built a Productivity App for People Who Hate Productivity Apps

I built a productivity app for neurodivergent minds (as someone with AuDHD)