Built by someone who ships
OfficeOS isn't an agency queue. It's me and a small team who've shipped real apps to production — now doing it for creators who'd rather own their app than rent a storefront.
Harro Krog
Founder of OfficeOS
The short version
I study computer science at the University of Hamburg and I've spent the last few years doing one thing over and over: shipping real products to real users. Not prototypes that live on a laptop — apps in the App Store, with onboarding, paywalls, backends, and analytics behind them.
Along the way I noticed the same trap again and again. People with an engaged audience — creators, coaches, community builders — kept renting their business on someone else's storefront or marketplace. They did the hard part, building the trust, and handed the platform the leverage.
OfficeOS is the answer to that. We design, build, and operate a subscription app under your brand, you own it, and we only earn when it earns. It's the thing I wish existed for every creator I've watched give their audience away to a link-in-bio. You can see more of what I've built on my personal site, or reach me on LinkedIn.
Not my first launch
Disability Tech × Microsoft Hackathon
Copenhagen, beating 100+ competitors. Built CuePath as sole developer — a personalized navigation app for disabled travellers with one-tap rerouting around inaccessible areas.
Production mobile apps
ElevenStoic and more — full apps taken from empty repo to the App Store: onboarding, paywall, backend, waitlist site, and analytics, with real users acquired.
Hackathons, 3 countries
Denmark, the Netherlands, Germany — plus a Microsoft Startup Accelerator seat. I build fast because I've done it under a deadline more times than I can count.