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Fiverr Pro
Português
$
USD
I will fix bugs, optimize performance, and update your flutter app
Azad Hossain
Sobre este Serviço
Struggling with Flutter bugs, crashes, or slow performance? I'll fix issues, optimize speed & stability, and update Flutter/Dart & packages so your app ships smoothly on Android & iOS.
What I do
- Fix Flutter bugs & ANR/crashes (Crashlytics, logs)
- Performance optimization: faster startup, smoother UI, fewer dropped frames
- Upgrade to latest Flutter/Dart, Gradle/Xcode, null-safety
- Debug API, Firebase (Auth, Firestore, FCM), payments (Stripe, SSLCommerz, Razorpay)
- UI/UX polish: icons, splash, layouts
- Store-ready builds & submission (Play Store/App Store)
Why me
- Proven releases on both stores
- FinTech experience: wallets, payments, banking flows
- Clear communication, quick turnaround, before/after metrics
- Post-fix support available
Tech: Flutter, Dart, Firebase, Supabase, REST/GraphQL, Fastlane/CI/CD, BLoC/Provider/Riverpod/GetX.
What I need: repo/zip, repro steps or video, logs, API/test creds, store access (if publishing).
Lets fix crashes, reduce jank, improve FPS/startup, handle build errors, review rejections, memory leaks, ANR, and state mgmt refactor. Ready to ship? Contact me.
Conheça mais sobre Azad Hossain
Azad Hossain
Flutter FinTech and AI App Developer
- A partir deBangladesh
- Membro desdeago. de 2025
Idiomas
Bengali, Inglês, Hindi, Urdu
I am a Full-Stack Flutter Developer with 5+ years of experience building secure, scalable mobile apps for Android and iOS. I specialize in FinTech, digital banking, e-wallet, payment, and AI-powered applications. I work with Flutter, Dart, Firebase, REST APIs, Node.js, Django, Supabase, and PostgreSQL. You will receive clean architecture, responsive UI, reliable integrations, thorough testing, and deployment support. I value clear communication, maintainable code, dependable delivery, and long-term product quality. Let’s turn your app idea into a reliable product for strong business outcomes.
Perguntas frequentes
Can you fix bugs in both Android and iOS Flutter apps?
Yes, I provide bug fixing and performance optimization for both Android and iOS apps built with Flutter.
Do you also update my Flutter app to the latest version?
Absolutely. I can update your Flutter project, dependencies, and packages to the latest stable version for better performance and compatibility.
Will you submit my app to the Google Play Console or Apple App Store?
Yes, app submission is included in my Premium package or as an extra service. I will ensure your app meets store requirements.
Can you optimize my Flutter app for speed and performance?
Yes. I specialize in performance optimization, making your app faster, more stable, and responsive across devices.
Do you provide UI/UX improvements along with bug fixing?
Yes, I can update your app design, app icon, splash screen, and layouts to improve user experience.
Will you provide the source code after fixing and updating my app?
Yes. The source code is included in my all packages.
What do you need from me to get started?
I will need your Flutter source code, project files, API keys (if any), and store access if you want me to handle publishing.
