Hi, I’m Johannes Wärn 👋

I design and build digital products,
specialising in native iOS apps

Gaff

Startup where I designed and built the iOS app from scratch using Swift and SwiftUI. Also trained and coached the technical team consisting of students from KTH.

Iris

Built 10+ minimum viable products in Swift to explore different directions for the new startup. Multi-user live cameras, co-watching, multi-user live social spaces, XP-based fan communities, and more.

Forza Clubs

New app concept for football clubs, giving them their own media channel with live streaming. Built the iOS app using Swift and UIKit, and led the design and the backend development.

Forza Football

Worked on the Objective-C codebase as an iOS developer, and led a team of designers and developers in close collaboration focused on high-impact changes for the user experience.

Spaced Repetition by Wärn

Learning app using flashcards and the science of how human memory works. 20k+ first-time installs, 4.8 star rating on Apple’s App Store.

Math Practice by Wärn

Small app for practising arithmetic.