I build high-quality iOS and Android applications, emphasizing product logic, performance, maintainability and a clear evolution trajectory.
For whom?
Startups, scale-ups, SMBs, companies with a solid and lasting application need and a quality requirement.
Use cases
Complex mobile app with rich business logic
Multi-platform product requiring a solid codebase
Application with fluid animations and rich UI
Project requiring long-term evolution
Stack & Timeline
Technologies:
Flutter
Kotlin Multiplatform (KMP)
Riverpod (state management)
Firebase or Supabase (backend)
Git & CI/CD
Timeline:
6 to 12 weeks depending on complexity and scope
Deliverables
Structured and maintainable source code
iOS and Android app ready for production
Layered architecture (UI, Logic, Data)
Unit and integration tests
Technical documentation
Support for publication and evolution
FAQ
Flutter or Kotlin Multiplatform, which to choose? Flutter if you want a single codebase and speed. KMP if you need native UI and want to share business logic between iOS/Android.
Can we start with FlutterFlow and migrate to pure Flutter? Yes, it's a common strategy: validate quickly with FlutterFlow, then move to Flutter for more control.
Can Flutter and KMP apps have good performance? Yes, both can reach native performance if well optimized. It's a matter of discipline and architecture.
Build mobile Flutter / Kotlin Multiplatform | Julien Jnnqin