Hey, I'm Jasper
I build apps, mostly with React Native, but also web products and the backend pieces behind them. Based in Belgium.
Projects
Roam
Games you play in real places
Roam turns a real map into a game board. You draw the play area, drop the things that matter, and set the rules as plain sentences, then everyone’s phone keeps the teams, timers and score in sync while you run around outside. Built all of it — the app, the no-code editor, the deterministic engine they share, and the realtime backend.
Apped
Build iPhone apps by chatting
Apped lets you describe an iPhone app in chat and get back a real React Native app running on your phone. I built the mobile app, the backend, the sandboxed runtime for each generated app, and the AI loop that edits code and streams the result back live.
Hunting Game
GPS chase game
Hide and seek, but your phone tracks everyone. Hunters chase runners across the city using real-time GPS. Built the whole thing — iOS, Android, Watch app, multiplayer backend.
StorePush
App Store toolkit
Managing App Store reviews sucks. This handles it — AI-generated responses, metadata management, the boring stuff automated so you can ship features instead.