Stamp Days
Counts the days you spend in every country, automatically. Open it after a trip and the days are already there.
iOS Developer.
I'm an iOS engineer in Cologne. By day I build features for Parship, eharmony and ElitePartner. As a hobby, I make my own apps: small, careful tools I wanted to exist.
I've been building apps for Apple platforms for years. Some of the apps I've worked on include online shopping apps, travel social network, and camera and text-recognition features. Currently, I'm building features for Parship, eharmony and ElitePartner at PE Digital. I focus on the details that make an app feel right: fluid interactions, reliable data, and clear, focused design.
Every app here is designed, built and released by me, from the first sketch to App Review.
Counts the days you spend in every country, automatically. Open it after a trip and the days are already there.
Taking your dog abroad? It turns a country's pet travel rules into a checklist with real dates.
Not everything I build is an app.
One-minute animated stories about the places in the news. A local AI narrator, painted scenes and my own motion-graphics engine.
Notes on building and shipping small apps: what worked, what App Review said, and what I'd do differently next time.
The foldable iPhone arrives on October 23. Here's how Stamp Days got ready for it in a day, what needed changing and what didn't, and the screenshots that go with it.
Read the postThe app got a new look, so its website needed one too. A bold idea that turned out to be misleading, a return to the app's own stamps, and the small fixes that made it feel finished.
Read the post All writing