I will fix bugs and crashes in your flutter app


About this gig
Is your Flutter app crashing, showing errors, or not building anymore? I fix bugs, crashes, broken UI, and outdated code so your app runs smoothly again on iOS, Android, and web fast.
What I fix:
- App crashes, freezes, and runtime errors
- Broken layouts, UI overflow, and responsiveness issues
- Build failures after Flutter/Dart SDK updates
- API or Firebase integration errors
- Null safety and dependency conflicts
- Performance issues (slow load, memory leaks, laggy scrolling)
How it works:
1. Send me your project (GitHub, ZIP, or Codemagic/Firebase access) plus the error log or a description of the issue
2. I review the code and confirm the fix scope and timeline before starting
3. I debug, test on real devices, and fix the root cause not just the symptom
4. You get the corrected code plus a short explanation of what caused the issue
5. Free 3-day follow-up support if the same bug resurfaces
Why work with me:
I focus on clean root-cause fixes, not quick patches that break something else later. You'll get clear updates throughout no disappearing after payment. Whether it's one stubborn bug or a full app health check, I'll get your Flutter app stable and store-ready again.
Get to know Umair Khan
MidLevel Flutter Developer, Full Stack Flutter Mobile Application Developer
- FromPakistan
- Member sinceJul 2022
- Avg. response time1 hour
Languages
Urdu, English
My Portfolio
FAQ
Do you need my full source code?
Yes, I need access to the project (GitHub repo, ZIP file, or a shared Codemagic/Firebase project) to diagnose and fix the issue properly.
What if the bug isn't fixed after delivery?
I include 3 days of free follow-up support if the exact same issue reappears.
Can you fix apps built by another developer?
Yes, I regularly take over and fix apps built by other developers or teams.
Do you fix Flutter Web issues too?
Yes, I handle bugs across Flutter mobile, tablet, and web builds.

