Feather — Quit-Smoking App
Complete subscription mobile product built solo in Flutter: custom design system, guided craving-support flow, scheduled notifications, in-app subscriptions, and privacy-first analytics.
Sole engineer and designer — idea to finished product
- platforms shipped (Android, web)
- 2
- lines of Dart
- 37K
- solo: design + code
- 100%
- privacy-first analytics
- EU
The challenge
Quitting smoking fails in the moment of craving. Feather treats that moment as the product: a guided, Socratic support flow designed to be reached in two taps, wrapped in a complete commercial app built end to end by one person.
What I built
A finished commercial product from one pair of hands: 37K lines of Dart, 529 tests green, subscriptions and paywall wired through RevenueCat, scheduled local notifications and in-app review prompts on top — and the same codebase compiles to web, which is what runs in the phone frame above.
Have something in mind?
I'm open to backend and platform roles, contract or permanent. Based in the EU, available on-site in Belgium and the Netherlands or remotely worldwide.