Stamp Days
Counts the days you spend in every country, automatically. Open it after a trip and the days are already there.
Hey, I'm Mousa.
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.
A bit about me.
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.
- Now
- iOS Engineer at PE Digital, since 2023. Swift, SwiftUI, UIKit, Combine and a lot of async/await.
- Before
- Perfect-iD in Cologne, arconsis in Karlsruhe, App-Tec, and three years of freelancing.
- Studied
- MSc in Communication & Media Engineering at Hochschule Offenburg, with a thesis on UI/UX design across mobile platforms. BSc in IT Engineering before that.
- Toolbox
- Swift Concurrency, Swift Testing, Core Location, MapKit, CloudKit, Core Animation, Fastlane, GitHub Actions.
- Speaks
- Persian, English, and German (getting there).
- Lives
- Cologne, Germany.
Things I've shipped.
Every app here is designed, built and released by me, from the first sketch to App Review.
Pupport
Taking your dog abroad? It turns a country's pet travel rules into a checklist with real dates.
New on Apple TV
Castwave
Your IPTV playlist, at home on Apple TV. Live TV with a guide, movies and series with real artwork, and a player that opens almost anything.
New on iPhone & iPad
Kalimba Coach
Learn the kalimba one key at a time. Every note falls onto the key you pluck, and practice listens to your own kalimba.
Also making.
Not everything I build is an app.
Pinned
One-minute animated stories about the places in the news. A local AI narrator, painted scenes and my own motion-graphics engine.
Writing.
Notes on building and shipping small apps: what worked, what App Review said, and what I'd do differently next time.
Kalimba Coach is out: learn the kalimba, one key at a time
Kalimba Coach is on the App Store for iPhone and iPad. If you have a kalimba in a drawer and a tab you never figured out, this is the app I built for you. Here's what's in 1.0, and the quickest way from unboxing to your first song.
Read the postStamp Days 2.0 and 2.1: a new icon, your world by continent, and eleven languages
Stamp Days 2.0 is out with a new icon and a new way to see how much of the world you've visited. Version 2.1, coming next, takes the app from five languages to eleven, including Japanese, Korean and Chinese. Here's what changed, and what localizing for Asia taught me.
Read the post All writing