Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix maintain and publish flutter firebase app on play store and app store
Muhammad Umair
About this gig
Is your Flutter app broken, crashing, outdated, or stuck before going live? You are in the right place.
I am a Flutter and Firebase developer specializing in app maintenance, bug fixing, Firebase upgrades, and publishing to Google Play Store and Apple App Store. I fix what is broken and get your app live fast.
WHAT I DO FOR YOU
- Flutter Bug Fixing and Crash Fixes
- Firebase Auth Firestore Storage Fixes
- Flutter and Dart Version Upgrades
- Package and Dependency Updates
- App Performance and Speed Fixes
- Google Play Store Publishing
- Apple App Store Publishing
- App Rejection Fix and Resubmission
- UI and Screen Bug Fixes
- Code Cleanup and Refactoring
WHY CHOOSE ME
- Flutter and Firebase Specialist
- Fast Delivery and Always On Time
- Regular Updates No Ghosting Ever
- Affordable Price Quality Guaranteed
Message me before placing order. Share your app details and error logs so I can review and give best solution.
Let us get your app live right now!
Get to know Muhammad Umair
Muhammad Umair
Flutter Developer and AI Engineer , Android iOS Apps, Machine Learning, GPT Appl
- FromPakistan
- Member sinceMar 2026
- Avg. response time1 hour
- Last delivery2 months
Languages
English
Hi! I’m a Flutter Developer and AI Engineer with 4+ years of experience building mobile apps for Android and iOS. I specialize in creating fast, scalable Flutter applications with Firebase, REST APIs, and clean architecture.
I also work with AI technologies like Generative AI, NLP, GPT chatbots, AI Agents, LangChain, and automation systems to build smart and modern applications.
I enjoy helping startups and businesses turn their ideas into powerful, user-friendly mobile apps.
🚀 Flutter | 🔥 Firebase | 🤖 AI/ML | 🧠 LangChain | ⚡ Generative AI
Let’s build something amazing together! 💡
My Portfolio
FAQ
Can you fix crashes and bugs in my Flutter Firebase app?
Yes, fixing Flutter crashes and Firebase bugs is exactly what I specialize in. I analyze your error logs, identify the root cause, and fix it properly. Whether it is a Firebase Auth error, Firestore permission issue, Flutter null safety crash, or a broken API call, I will find it and fix it fast.
Can you publish my Flutter app to Google Play and App Store?
Absolutely. Publishing Flutter apps to Google Play Store and Apple App Store is one of my core services. I handle everything including APK and AAB build, signing keystore, store listing, screenshots, metadata, and final submission. If your app was rejected before I can fix the issues. resubmit it
My Flutter app was rejected by the store. Can you help?
Yes! App store rejection is very common and I handle it regularly. I review the rejection reason from Google Play or Apple, fix the exact policy violation or technical issue causing it, and resubmit the app on your behalf. Most rejections are fixed within 2 to 3 days.
Can you update my Flutter app to the latest version?
Yes, Flutter version migration and package updates are part of my maintenance service. I upgrade your Flutter SDK, Dart version, and all outdated packages. I also fix any breaking changes or conflicts that come with the upgrade. This keeps your app modern, secure, and working perfectly on both Andro
Can you update my Flutter app to the latest version?
Yes, Flutter version migration and package updates are part of my maintenance service. I upgrade your Flutter SDK, Dart version, and all outdated packages. I also fix any breaking changes or conflicts that come with the upgrade. This keeps your app modern, secure, and working perfectly on both Store
