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I will fix flutter bugs crashes and optimize your mobile app performance
Flutter Developer for Reliable Mobile Apps
Need a mobile app that works smoothly, looks professional, and solves a real business need? I help businesses and individuals build, fix, and improve Flutter applications using Flutter, Dart, and Fire...
About this Gig
Flutter app crashing, lagging, failing API calls, or breaking after an SDK/package update? You may not need a rebuildyou need the real cause found and fixed without creating new problems.
I fix, optimize, and maintain Flutter apps for Android and iOS.
I can help with:
Flutter bugs, errors, exceptions and crashes
UI overflow, layout and responsiveness issues
Firebase Auth, Firestore, FCM and configuration problems
REST API, JSON, state-management and data issues
Gradle, SDK, dependency and build errors
App lag, unnecessary rebuilds, slow screens and startup issues
Flutter/package upgrades and code maintenance
Android/iOS release and store-blocking technical issues
If you do not know what is causing the problem, that is fine. Tell me what should happen, what happens instead, and when it started. I will trace the issue from there.
Direct-order packages are time and scope based. New features, major refactors, full backend work, or unrelated issues discovered later are quoted separately.
Platform:
Cross-platforms
App type:
Hybrid
Frameworks:
Flutter
•
Laravel
•
Node.js
Programming language:
Dart
•
Java
•
JavaScript
•
PHP
•
React Native
•
HTML
Tools:
Flutterflow
•
Android Studio
•
Xcode
•
Supabase
Other Mobile App Maintenance Services I Offer
FAQ
I know something is wrong with my Flutter app, but I don't know the cause. Can you still help?
Yes. You do not need to diagnose the technical cause yourself. Tell me what should happen, what happens instead, and the steps that trigger the problem. Screenshots, screen recordings and error logs are especially useful.
What counts as a minor bug in the Basic package?
A minor bug is a focused issue that can reasonably be investigated and fixed within the package's one-hour work limit, such as a small UI issue, simple error, minor crash or configuration problem.
Can you fix Firebase issues?
Yes. I can investigate Flutter-related Firebase problems involving Authentication, Firestore, Storage, FCM, configuration and app integration. New backend architecture or extensive Cloud Functions work may require a custom offer.
Can you fix REST API problems?
Yes. I can investigate API requests, authentication, JSON parsing, error handling, state updates and Flutter-side integration. If the actual problem is inside a third-party or custom backend, additional backend work may need to be quoted separately.
Can you improve a slow or laggy Flutter app?
Yes. I can investigate unnecessary widget rebuilds, slow screens, rendering issues, inefficient state handling, startup problems and other Flutter performance bottlenecks. The amount of improvement depends on the existing architecture and root cause.
Can you fix Android or iOS build errors?
Yes. I can work on Flutter build problems involving Gradle, dependencies, SDK versions, package conflicts and platform configuration. Please share the complete error output and explain any recent upgrades or changes.
Do you provide ongoing mobile app maintenance?
Yes. I can handle Flutter app maintenance such as bug fixes, upgrades, dependency updates and technical improvements. Ongoing weekly or monthly support is usually handled through a custom offer based on expected hours.
Do you need my source code?
Yes. For most debugging work I need the latest Flutter project/source code and enough information to reproduce the issue. If Firebase, APIs or other external services are involved, relevant development access may also be required.
What does a revision include?
A revision applies to the same issue and scope already agreed in the order. A new bug, feature request, redesigned screen or unrelated problem is additional work rather than a revision.
Can you add new features while fixing the app?
Yes, but new feature development is separate from bug fixing. Send the feature requirements and I can provide a custom offer or recommend the appropriate development service.
