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Fiverr Pro
English
$
USD
I will fix bugs, complete and upgrade your unfinished or broken flutter app
Fullstack Web and Mobile Developer
Hi, I’m Azam, a full-stack web and mobile developer with 3+ years of experience building, fixing, and improving business websites and web apps.
I work with HTML, CSS, JavaScript, React, Vue, PHP, Lar...
About this Gig
Your Flutter app exists, but it doesn't work the way it should: the previous developer left, it crashes, it won't build on the latest Flutter, half the features are missing, or the backend was never connected. I take over existing Flutter projects and bring them to a stable, releasable state.
WHAT I DO
- Audit: build, dependencies, architecture, state management. You get a written report first
- Fix bugs and crashes on iOS and Android, upgrade Flutter/Dart and packages, null safety
- Complete unfinished screens and features to your spec or Figma
- Connect the app to your backend: REST API, WebSocket, Firebase, Supabase, auth, push, payments, maps
- Refactor Riverpod/Bloc/GetX where it's the cause of the bugs, not a rewrite for its own sake
- Release builds and store publishing (Premium), plus maintenance after launch
WHY ME
- 3+ years Flutter + backend (FastAPI, Laravel): one developer for app AND API
- I've published apps on the App Store and Google Play for companies and know the review rules
- I speak English, Russian, Uzbek, Ukrainian, Polish
HOW IT WORKS: send me the repo (or a zip). I reply within hours with what's wrong, what it takes to fix, and a fixed-price offer.
Platform:
Cross-platforms
App type:
Native
Programming language:
Dart
•
Java
•
JavaScript
•
Kotlin
•
Swift
•
TypeScript
Frameworks:
Flutter
•
Jetpack Compose
•
SwiftUI
Tools:
Flutterflow
•
Android Studio
•
Xcode
•
Supabase
My Portfolio
Other Mobile App Maintenance Services I Offer
FAQ
Can you work with an app someone else built?
That's the point of this gig. I start with an audit so you know the real state of the code before spending money on it.
The app was built with FlutterFlow or an AI tool. Can you fix it?
Yes. I export or take the Flutter code and continue in real Flutter; you keep the ability to edit it in the future.
Do you need the backend code too?
If the backend is broken or missing, I can build or fix it (FastAPI/Laravel) — see my backend gig or the extra.
Will it work on the latest iOS and Android?
Yes — upgrading Flutter, Gradle/Xcode configs and deprecated packages is part of Basic when it's the cause of the problem.
Do I get the source code, and can I hire another developer later?
Full Git repo with a README and clean architecture. No lock-in.
Can you publish it to the stores?
Included in Premium; for Basic/Standard add the publishing extra or use my publishing gig.
