About
I build small, focused apps from a desk in Germany. The name "esues" is just my initials, spoken out loud the way they sound in German.
I'm a software developer who got hooked on apps the same way other people get hooked on woodworking or baking sourdough: I like the loop of having an idea, building something small, and putting a finished, polished thing into someone's pocket.
Most of what I make starts as a nudge: a habit I want to build, a problem I keep running into, or just an interaction that sounds fun to design. If it survives a weekend prototype, I keep going.
I have a soft spot for apps that don't try to be platforms when a tool will do. The right business model depends on the app: Hey Buddee is privacy-first and stays local on your device, because friendship data should never leave your phone. The games (Kiwi des Schicksals and Chain Balls) are free and supported by ads, which keeps them open to everyone with a phone.
I also try to be honest about scope. A small, finished, well-made app beats a sprawling one with three half-built features any day.
Every app on this site was designed, written, tested, and shipped by one person: me. That's both the limitation and the point. I can move quickly, change my mind, and care about details that no one would ever fight for in a roadmap meeting.
*Full disclosure: I can't actually design my way out of a paper bag. But I can tell what looks good to me and what doesn't, and with a little help from AI I usually find my way to the result I had in my head.
Hey Buddee helps you stay close to the people you care about, without turning friendship into a CRM. Kiwi des Schicksals is a longstanding fortune cookie in your pocket: tap the kiwi and read one of thousands of little sayings. Chain Balls is the most recent. A fast, satisfying chain-reaction puzzle for iOS.
You can find more on the Apps page, or jump straight to hey-buddee.app.
The fastest way to reach me is by email at hello[at-sign]esues.de
(replace [at-sign] with @ when you compose the message).
I read every email. Feedback, bug reports, ideas, or just hello are all welcome.
You can also find me on LinkedIn if that's more your speed.
I don't have a newsletter (yet). For now, the best place to keep up is just bookmarking this site or watching the App Store pages.
See the apps