Hamza K.

Need a Flutter mobile app developer to build your iOS and Android app, add AI features, fix bugs or finally get it live on the App Store and Google Play? I'm Hamza, Top Rated with 7+ years and 59+ apps shipped. Maybe you have an idea, Figma designs or an app that is buggy, half finished or stuck in review. I take it from where it is to a live app. I read unfamiliar code fast, find the real cause of crashes and failed builds and fix them without rewriting everything. Urgent fixes are welcome. What you get ✅ A new iOS and Android app built in Flutter, from idea or Figma to launch ✅ AI features that work: OpenAI / ChatGPT API chatbots, AI assistants and content generation ✅ Your existing app fixed: crashes, failed builds, slow screens and Flutter bugs ✅ Your app published on the App Store and Google Play, with rejections handled ✅ Payments that work: Stripe, in-app purchases and subscriptions with RevenueCat ✅ Real-time features: chat, push notifications, Google Maps and live location tracking ✅ A solid backend: Firebase, Supabase, PostgreSQL and REST APIs ✅ Clean BLoC and Riverpod code your next developer can maintain ✅ Native iOS (Swift) or Android (Kotlin) when Flutter is not the right fit ✅ FlutterFlow app development and MVPs for startups ⭐ What a client said "Hamza did an excellent job fixing the AI persona generation bug in my Flutter book app. He quickly identified the issue with the Firebase and OpenAI integration..." - Upwork client, August 2026 📱 Apps I've built and shipped - Tigree: food delivery app with customer, vendor and driver apps - IM GGOOD: private community app with chat and subscriptions - LetzLearn: language learning app with an AI chatbot - Skipper24: GPS tracking and logbook app for boaters - Datacasa: Airbnb property management app with calendar sync - Méditer avec Bruno Lallement: 10,000+ downloads on Google Play 🤝 How I work - Clear updates, so you always know where your app stands - Realistic timelines and no disappearing mid-project - Clean, documented code and support after launch Send me your app idea or tell me what is going wrong with your current app. I'll tell you honestly what it needs and how fast I can deliver.