Native apps for iPhone & Apple Watch - private by design.
I'm Arnold Schreiner. I build iOS apps that work without accounts, tracking, or forced cloud sync - with clean design and care for detail.
Small steps, visible progress.
Hybbit is a habit tracker with fair streaks: the current period counts as a grace window - only a fully missed period ends your run. With daily, weekly, and monthly goals, an interactive widget, and clear statistics.
Your exchange rate, always at hand.
Swapwise converts 160+ currencies live - or straight from a price tag via camera. With rate charts, widgets, and Apple Watch; caching keeps everything working offline.
About me
There is no company behind Hybbit and Swapwise - just one person: I build, design, and support both apps myself, from northern Germany. What I build, I use myself every day.
And when you write to me, I reply personally - usually within 48 hours.
Say hello.
Write to me - your message lands directly with me.
Get in touch