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I will build flutter app with firebase or fastapi backend
Mahim
About this gig
Flutter app + backend from one developer: Android & iOS apps with Firebase or FastAPI + PostgreSQL.
Need a working app, not just screens? I build the Flutter UI, the backend and the API, then hand over clean, tested source code. One developer for the whole product means no hand-off problems.
WHAT YOU GET
- Flutter app (Android & iOS) with clean, responsive UI
- Firebase: Auth, Firestore, Storage, push notifications
- Custom backend: FastAPI + PostgreSQL, JWT auth, Swagger docs
- REST API integration, Google Maps, payment gateways
- Bloc, Provider or Riverpod state management
- Full source code, commented and well organised
APPS I BUILD
E-commerce, food delivery, booking, chat, e-learning, fitness, inventory, CRM and startup MVP apps.
WHY ME
- App and backend by one developer
- Scope, price and timeline confirmed before I start
- Regular progress updates and tested builds
Not sure whether Firebase or FastAPI fits? Tell me your idea and I will recommend the cheaper, scalable option.
Message me your requirements before ordering and I will confirm scope and price.
Get to know Mahim
Mahim
Mobile App Developer,Flutter Developer
- FromBangladesh
- Member sinceOct 2020
- Last delivery3 years
Languages
Bengali, English
Hi! I’m a passionate Flutter developer who loves building beautiful, fast, and user-friendly mobile apps for Android. I work with the Flutter framework create smooth, cross-platform experiences. I enjoy designing clean UIs, building custom widgets, and using state management like Getx,Firebase and Restful APIs to keep things running efficiently. If you're looking for someone who truly cares about your app's success, let’s work together!
FAQ
Firebase or FastAPI + PostgreSQL: which should I choose?
Firebase is faster and cheaper for MVPs, chat and real-time apps. FastAPI + PostgreSQL suits complex data, custom logic and full control with no vendor lock-in. Share your idea and I will recommend one.
Do you build both the app and the backend?
Yes. I build the Flutter app and the backend (Firebase or FastAPI + PostgreSQL), connect them and test the full flow. You can also order only the app if you already have an API.
Will the app work on Android and iOS?
Yes, Flutter uses one codebase for both. I test mainly on Android. For iOS builds and TestFlight I need access to your Apple Developer account.
Do I get the source code?
Yes. You get the full Flutter code, backend code, database schema and API documentation (Swagger for FastAPI).
Where will the backend be hosted?
Firebase runs in your own Firebase project. FastAPI is delivered with Docker and can be deployed on any VPS, Render, Railway or AWS. Hosting costs are paid by you.
