Hey, I'm Mousa.

I make iPhone apps.

I'm an iOS engineer in Cologne. By day I build features for Parship, eharmony and ElitePartner. The rest of the time I make my own apps under the name Applestan: small, careful tools I wanted to exist.

  • Stamp Days
  • Pupport
  • DiceCraft
  • Timeflip
  • PlotCraft

A bit about me.

I've been building for iPhone since 2016. 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.

Stamp Days

Counts the days you spend in every country, automatically. Open it after a trip and the days are already there.

Pupport

Taking your dog abroad? It turns a country's pet travel rules into a checklist with real dates.

DiceCraft

Every die for board game night and tabletop RPGs, right in your pocket.

Timeflip

Can you read a clock when it's mirrored? A small brain game about flipped time.

PlotCraft

A graphing calculator made for clarity, speed and simplicity.

Say hi.

About an app, a role, or anything iOS. I read everything.