Browse categories
Explore
Fiverr Pro
English
$
USD
I will do flutter bug fix and debug your app, german mobile app development in flutter
Sven
About this gig
Are you looking for a Flutter developer to fix bugs, debug your app, and improve performance on Android and iOS? I specialize in Flutter bug fixing, Flutter debugging, API integration fixes, and mobile app error resolution to make your app run smoothly, fast, and reliably.
If your app is crashing, showing errors, or rejected by the Play Store or App Store, I will identify the root cause and apply a clean, long term fix no temporary patches.
What this gig offers:
- Fix Flutter app crashes and runtime errors
- Debug UI/UX layout issues
- Resolve API and backend integration problems
- Fix Firebase authentication & database errors
- Solve state management bugs
- Fix build & deployment issues
- Improve app performance & speed
- Debug logic errors and unexpected behavior
- Fix Play Store & App Store rejection issues
- Optimize code structure and stability
- Fix third-party SDK integration issues
- Android & iOS compatibility fixes
- Clean, maintainable code solutions
- Testing and validation after fixe
Why choose me:
- Clean, scalable, production ready fixes
- Fast communication and reliable delivery
Send me your issue details and Flutter version before ordering.
I'll review and provide the best solution. THANKS
Get to know Sven
Sven
Sven Achen ' Build Smart ' Scale Fast ' Dominate Digital
- FromGermany
- Member sinceApr 2026
- Avg. response time15 hours
Languages
English, Abkhazian, German, Spanish
I help businesses transform ideas into powerful digital success through expert web app development, mobile app creation, AI & LLM solutions, PCB design, and Google Merchant Center misrepresentation fix.
From high converting websites and scalable mobile experiences to intelligent automation, custom hardware systems, and eCommerce compliance, I create innovative, SEO driven solutions that boost visibility, trust, and revenue.
Partner with Sven Achen for advanced technology, digital growth strategy, and future ready business solutions designed to elevate your brand & outperform the competition.
FAQ
Do you fix all types of Flutter bugs?
Yes, I fix UI issues, crashes, API errors, Firebase problems, state management bugs, and deployment issues. If it’s related to Flutter code, I can debug it.
Will you add new features to my app?
No, this gig is strictly for bug fixing and debugging only. If you need new features, you can contact me for a custom offer.
Do you need full source code access?
Yes, I need your complete Flutter project source code to properly analyze, debug, and fix the issues effectively.
How long does it take to fix a bug?
It depends on complexity. Simple bugs can be fixed within hours, while complex issues may take longer after proper analysis.
What if the bug is not fully fixed after delivery?
If the issue is within the agreed scope, I will revise and fix it until it works correctly based on the original problem description.
