Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix flutter react native firebase mobile app bugs API and deployment
danniel linn
About this gig
Many mobile apps fail because of frustrating bugs, broken APIs, Firebase errors, build failures, deployment issues, or features that simply refuse to work. Whether your Flutter or React Native app crashes on launch, cannot connect to your backend, fails authentication, or won't compile for Android or iOS, these issues can delay your launch and cost valuable users.
I specialize in identifying the root cause instead of applying temporary fixes. I will thoroughly debug your application, repair broken functionality, resolve API integration problems, fix Firebase Authentication, Firestore, Storage, Cloud Messaging, build errors, dependency conflicts, deployment issues, and improve overall app stability.
My goal is to deliver a reliable, fast, and production-ready application that performs smoothly across devices. Every fix is carefully tested to reduce future issues and ensure your users enjoy a seamless experience.
I can help fix:
- Flutter bugs
- React Native bugs
- Firebase issues
- API errors
- Android build failures
- iOS build failures
- Deployment problems
- Authentication issues
- Database errors
- Performance issues
KINDLY MESSAGE ME NOW!!!
Get to know danniel linn
danniel linn
web app developer
- FromUnited Kingdom
- Member sinceJan 2026
- Avg. response time12 hours
Languages
English
Elevate your business with next-gen AI App Development. I specialize in building scalable SaaS MVP solutions through advanced Vibe Coding and automated workflows. By leveraging the latest AI App Builder technologies, I transform complex ideas into high-performance Web Applications. From full-stack architecture to expert Debugging and API Integration, I ensure your AI Website is secure and production-ready. Let’s scale your vision with rapid App Deployment and smart Workflow Automation. Message me to start building now!
FAQ
1. What types of mobile app issues can you fix?
I fix Flutter and React Native bugs, Firebase Authentication, Firestore, Storage, Cloud Messaging, REST API integrations, Android and iOS build errors, deployment issues, crashes, UI problems, performance bottlenecks, dependency conflicts, and more.
2. Do you work with existing projects?
Yes. I can work on existing Flutter or React Native projects regardless of who originally developed them. Simply provide the source code or repository access along with a description of the issue.
3. Can you fix Firebase integration problems?
Absolutely. I can troubleshoot Firebase Authentication, Firestore, Realtime Database, Storage, Cloud Functions, Cloud Messaging (FCM), Analytics, configuration issues, security rules, and connection problems.
4. Can you help publish my app to the Play Store or App Store?
Yes. I can resolve deployment issues, generate release builds, configure signing, fix store submission errors, and assist with publishing your app to both Google Play and the Apple App Store.
5. What do you need before starting?
Please send your project source code (GitHub, GitLab, Bitbucket, or ZIP), a detailed description of the issue, screenshots or error logs if available, and any API or Firebase configuration needed to reproduce the problem. This helps me diagnose and fix the issue quickly.
