Hey, I'm Clemens, a product designer and self-taught iOS developer.
I've spent 6+ years designing mobile products. Currently I run 
Vogelhaus Apps with my cofounder, an indie studio where we build 
Whistle and 
Peaks, both of which have been featured by Apple in categories like New Apps We Love.
Fixing Whistle's Training Intelligence
One overloaded Recovery score tried to answer three different questions. Splitting it into Recovery, Vitals, and Training Load fixed it.
Rebuilding the first steps of a fitness journey
Redesigning onboarding for adidas Running and adidas Training, and what a failed first draft taught us.
Weather, built for outdoor training
Rebuilding Whistle’s weather feature into something athletes actually need.
Building an app around your body's own rhythm
The pivot from a calendar app to interactive routines, and the redesign that followed a rough beta.
Building a design system to switch design languages
Building the Runtastic component library from scratch to bring adidas Running and Training onto the adidas design language.