Top Rated Flutter app developer with 100% Job Success 24 mobile apps delivered on Upwork for iOS and Android, including AI-powered apps with ChatGPT and OpenAI integration. If you need a mobile app that actually ships to the App Store and Play Store, not a half-finished codebase — that's exactly what I do. WHAT I BUILD: ● Cross-platform mobile apps with Flutter — one codebase, iOS + Android ● AI-powered features: chatbots, image recognition, voice, and LLM integrations (OpenAI, ChatGPT, Claude, Gemini APIs) ● Native iOS development with Swift & SwiftUI when the project calls for it ● Complete builds: Figma design → Flutter development → App Store & Play Store approval ● Firebase, REST APIs, push notifications, in-app purchases, subscriptions, payment gateways (Stripe) RECENT RESULTS: ●Crease Pro/Training, Practice — built with Flutter and launched in 7 weeks, now live on Apps Store ●Arbornote / Trees Mapping CRM — integrated AI for proposal generations using the OpenAI API, with 98.1% Accuracy. ●StressRant / Mental Wellness — took over a stalled project, refactored, and shipped in 10 weeks with AI features and a production level MVP available on both stores WHY CLIENTS COME BACK (100% Job Success across 24 jobs): ● Clear progress updates every step — you always know where your app stands ● Clean, documented Flutter code you own completely ● Honest timelines. If it takes 6 weeks, I say 6 weeks — then I hit it. NEXT STEP: Send me an invite or message with a short description of your app idea. I'll reply within an hour with an honest take on scope, timeline, and cost — no obligation.

I’m Ali Hassan, a passionate Flutter Developer with 2+ year of hands-on experience building and deploying cross-platform mobile apps and web applications for Android and iOS. I specialize in: Cross-Platform Mobile Development: Flutter apps that run seamlessly on Android and iOS Backend & Cloud Solutions: Firebase (Authentication, Realtime Database, Firestore, Storage, Cloud Functions) API Integrations: REST API, JSON, third-party services UI/UX Development: Clean, responsive, and user-friendly app designs Web Apps: Flutter web development with modern, scalable architecture Why clients choose me: Proven track record of delivering high-quality apps that meet client needs Strong knowledge of Dart, Java, Android SDK, and iOS app workflows Ability to write clean, maintainable, and scalable code Commitment to on-time delivery and excellent communication Whether it’s a custom business solution, e-commerce app, food delivery system, or real-time mobile app, I can turn your idea into a reliable product. Let’s build your next Flutter mobile app or web application with the power of Firebase and REST APIs.

Have an app idea but not sure where to start? A few years ago, I was sitting exactly where many of my clients are today: trying to turn an idea into an app. After years of mistakes and learning to code, I ended up building SchooLinks, which grew into an Inc. 5000 business and raised over $10 million. Since then, I focus on designing and developing apps for founders and entrepreneurs with no technical background. People who have identified a problem that an app could solve, but they don't know how to build it. They have the vision, but they don't have the tech partner. And these are the results my clients have gotten: • $10M+ raised by clients • 2M+ users across products built • 10K+ five-star reviews across products built • Top 1% in App Design & Development on Upwork ---------------------------------------------- I offer a 𝗳𝗿𝗲𝗲 𝟯𝟬-𝗺𝗶𝗻𝘂𝘁𝗲 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 to discuss and refine your idea, recommend the right tech stack, and forecast any ongoing costs as your user base grows, so you avoid surprises and make informed decision with clarity. ---------------------------------------------- Words from a recent client after working with us: (check more on my profile below) "Noman Razzaq 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙖𝙣𝙙 𝙞𝙨 𝙖𝙡𝙬𝙖𝙮𝙨 10 𝙨𝙩𝙚𝙥𝙨 𝙖𝙝𝙚𝙖𝙙 𝙤𝙛 𝙠𝙣𝙤𝙬𝙞𝙣𝙜 𝙬𝙝𝙖𝙩 𝙩𝙝𝙚 𝙗𝙪𝙞𝙡𝙙 𝙣𝙚𝙚𝙙𝙨. 𝙒𝙚 𝙖𝙧𝙚 𝙘𝙤𝙣𝙩𝙞𝙣𝙪𝙞𝙣𝙜 𝙩𝙤 𝙬𝙤𝙧𝙠 𝙩𝙤𝙜𝙚𝙩𝙝𝙚𝙧 𝙖𝙣𝙙 𝙄 𝙝𝙖𝙫𝙚 𝙖𝙡𝙧𝙚𝙖𝙙𝙮 𝙧𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙𝙚𝙙 𝙝𝙞𝙢 𝙩𝙤 𝙤𝙩𝙝𝙚𝙧 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨." ⭐⭐⭐⭐⭐ - Bill Kocjancic 𝙁𝙤𝙪𝙣𝙙𝙚𝙧 𝙈𝙚𝙨𝙢𝙚𝙧 (𝙐𝙣𝙞𝙩𝙚𝙙 𝙆𝙞𝙣𝙜𝙙𝙤𝙢) ---------------------------------------------- I've majored in software engineering, and I've used a myriad of technologies to help various businesses create mobile apps that have generated millions in revenue. Over the past 5+ years, I have developed a wide range of iOS and Android mobile apps. ✅ Food delivery app ✅ Ride booking app (like Uber) ✅ Real estate listing app (Like Airbnb) ✅ Social media mobile app (like TikTok/Instagram) ✅ Startups/Investment management mobile app ✅ Wellness mobile app ✅ Fitness and Nutrition mobile app (like CalAI, MyFitnessPal) ✅ Sports mobile app ✅ E-commerce mobile app ✅ Language Learning Mobile App (Like Duolingo) ✅ Event management mobile app ✅ Grocery/Meal Planning mobile app ✅ Freelance mobile app ✅ Service Booking Mobile App (Home/HVAC) ✅ Inventory Management Mobile App ✅ Learning Management Mobile App ✅ Appointment Booking Mobile App (Salon/Doctor) ✅ Venue Booking Mobile App (Sports/Events) ✅ Task Management Mobile App (Project Management/To-Do) ✅ On-Demand Custom Mobile Apps ---------------------------------------------- As your 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗽𝗮𝗿𝘁𝗻𝗲𝗿, I go above and beyond to ensure your app’s success, from concept to launch. What I Also Bring Beyond Development: → Technology & architecture consulting → Product roadmap & feature prioritization → Help you understand any possible ongoing costs with the project → Cost-effective tech stack selection with long-term cost planning → Scalability strategy as your user base grows → Technical support during investor or stakeholder discussions ---------------------------------------------- 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲 & 𝗟𝗼𝗻𝗴-𝗧𝗲𝗿𝗺 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 I provide free post-delivery support for 8 weeks, followed by flexible maintenance plans based on your product needs, usage scale, and future roadmap, always discussed transparently. ---------------------------------------------- 🚀 If you’re looking for someone who understands your product, owns outcomes, communicates clearly, and thinks long-term, let’s connect and build something solid. ❗❗ Check out my portfolio! ❗❗ Highlighted Skills: Full Stack Developer | Expert Full Stack Developer | Full Stack Mobile App Developer | Full Stack AI Developer | Expert Full Stack Mobile App Developer | Mobile Developer | iOS Developer | Android App Developer | Mobile App Development | Cross platform development | AI App Developer | AI App | Mobile Developer | App Developer | Mobile App Development Consultation | IT Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Hybrid App development | Mobile App Development Consultation | Flutter | Firebase | Dart | Flutter Dart | Flutter Firebase | iOS Development | Android App Development | Smartphone | User Authentication | In App Purchases | API Integration

Flutter Developer specializing in mobile app development using Flutter Dart and Flutter Firebase to build high-performance iOS and Android applications. I focus on developing scalable, production-ready mobile apps with clean architecture, optimized Firestore databases, and secure backend systems powered by Firebase. I also work as an AI App Developer, helping integrate intelligent features into modern mobile applications. ----Mobile App Development Services---- End-to-end mobile app development using Flutter Flutter Firebase backend development and optimization Firestore database architecture and structuring AI-powered app features and integrations Admin panels and dashboards Third-party API integrations Payment integrations including Stripe and in-app purchases App Store and Google Play deployment ----Core Expertise---- Flutter Developer for cross-platform apps (iOS and Android) Flutter Dart development with clean and maintainable code Scalable mobile app architecture design State management using Provider, Riverpod, and Bloc REST API integration and backend connectivity Performance optimization and app scalability ----Flutter Firebase Backend---- Firebase Authentication (Email, Google, Apple, Phone) Cloud Firestore database design and optimization Firebase Cloud Functions for backend logic Firebase Cloud Messaging (push notifications) Firebase Storage management Security rules and role-based access control Real-time data synchronization As a Flutter Developer and AI App Developer, I build complete mobile app solutions using Flutter, Dart, and Firebase, ensuring performance, scalability, and long-term reliability. If you are looking for Flutter Firebase expertise for your mobile app development project, feel free to send an invitation.

Hi, I’m Nesrine, a Flutter developer focused on fixing, improving, and publishing mobile apps for Android and iOS. I help clients with: • Fixing bugs and crashes • Improving UI and layout issues • Adding new features • API integration (REST, Firebase) • Performance optimization • Google Play & App Store publishing I’ve worked on multiple production apps and understand how important stability, responsiveness, and clean code are for mobile projects. I communicate clearly, respond quickly, and stay fully dedicated until the task is completed properly. If your Flutter app needs fixes, improvements, or help getting published, I’m ready to start immediately.

Need a Flutter developer who can also build the AI layer your app is missing? I've shipped 30+ mobile apps (10M+ downloads) and built LLM-powered chatbots, RAG pipelines, and AI agents directly into production Flutter apps. Most Flutter developers stop at the UI. I build the full stack: Flutter front end, Python or Node backend, and the AI layer (OpenAI, Claude, Gemini) that makes the app genuinely smarter, not just chatbot-shaped. That combination is rare, and it means one person can own your app from architecture to AI integration to deployment. What I do: Flutter mobile apps: cross-platform iOS and Android apps with Firebase, REST/GraphQL APIs, real-time features, and clean, scalable UI. AI integration: LLM-powered chatbots and assistants, conversational AI, RAG pipelines, and AI agents built into mobile and web products. Backend to support your app: REST APIs and scalable backends in Python (Django, FastAPI), Ruby on Rails, and Node.js, with solid database design and third-party integrations. Recent work: AI medical scribe app for oncology consultations, a real estate app aggregating property data from multiple platforms, voice AI and WhatsApp booking automation for salons and clinics, and a Flutter MVP for a sports activity startup. Proof: Top Rated on Upwork with a 4.87 rating across 31 jobs and 2,899+ hours logged. Certified AI Mobile App Developer (Meta via Coursera) and AI Agent Developer Specialization (Vanderbilt via Coursera). Apps I've built have crossed 10M+ combined downloads. Message me with what you're building and I'll come back with a scoped approach, timeline, and price before we get on a call.

Most Flutter developers build generic apps. I focus on the hard stuff — health data platforms, Bluetooth LE & wearable integration, real-time WebRTC video, and AI-powered mobile features. Top Rated Plus on Upwork with 100% Job Success. If you're building a mobile product that has to work — real-time vitals from a BLE wearable, an AI assistant inside your app, or video calls that don't drop on weak networks — that's exactly the kind of problem I solve. I've spent 8+ years building mobile apps, starting as an Android native developer and moving into Flutter, which means I understand what's happening under the hood — not just the framework, but the platform beneath it. That foundation is why my apps stay fast, stable, and battery-friendly even in tough conditions. ⭐ Why clients work with me: Flutter apps that stay smooth even on low-end devices and poor internet connections Deep experience in the niches most developers avoid: medical/health data, Bluetooth LE & IoT device communication, WebRTC real-time video, and AI integration Clear weekly milestones and transparent progress, so you always know where your project stands Senior-level communication — I ask the right questions early and flag risks before they become problems Production mindset: clean architecture, proper state management, and code your next developer can actually maintain 🩺 Recent work: HealthGauge — BLE wearable integration with real-time vitals tracking and interactive health data visualizations (iOS + Android) AI-powered contact-center app on AWS that automates customer support workflows A senior-friendly video calling app with auto-answer, built to stay reliable on slow connections for elderly users Live solar-telemetry app integrating real-time IoT data for a German solar manufacturer Secure WebRTC video + audio calling app with in-call messaging across iOS, Android, and desktop 🛠️ Technical stack: Mobile: 8+ years building mobile apps — Android native (Java/Kotlin) → Flutter & Dart, iOS (Swift/Objective-C) AI: LLM integration via OpenAI & Claude APIs — in-app AI chat, smart/contextual responses, data-driven insights, and Firebase Generative AI State management: BLoC (preferred), Riverpod, GetX, Provider Backend: Firebase (Authentication, Firestore, Cloud Functions, Push Notifications/FCM, Analytics, Performance), Supabase, Node.js, REST & GraphQL APIs Cloud & real-time: AWS (Chime SDK, Lambda), WebRTC, push notifications, live chat IoT & hardware: Bluetooth Low Energy (BLE), ESP32, NRF, NFC, smartwatch SDKs, wearable device integrations Databases & local storage: Firestore, SQLite, Hive Payments: Stripe, PayPal, Razorpay Maps & location: Google Maps, Mapbox, Flutter Map Tooling: GitHub, Jira, Trello, CI/CD, Agile workflows 📦 30+ apps delivered across HealthTech & health monitoring, AI-powered apps, real-time communication (chat & video calls), fitness & sports, logistics & delivery, service-provider platforms, and fintech. How I work: We start by understanding your vision, users, and business goals — not just the feature list. I break the project into weekly milestones so progress is visible and predictable, share regular updates, and keep the codebase clean and documented throughout. When you build with me, you work directly with the engineer writing your code — no account managers, no hand-offs, no telephone game. You get honest technical advice, realistic timelines, and an app built to scale as your business grows. Whether you have a detailed spec, a rough Figma design, or just an idea on paper, I can help you turn it into a production-ready iOS and Android app from a single Flutter codebase — and I'm equally comfortable taking over and improving an existing Flutter project, fixing bugs, or refactoring messy code. 📩 Send me a message with your idea and I'll reply with honest, specific feedback on how I'd approach it — including the tech stack, timeline, and any risks I'd watch out for. Flutter | Dart | AI Integration | LLM | OpenAI | Bluetooth LE | IoT | WebRTC | HealthTech | Wearable App | Firebase | AWS | iOS | Android | Cross-Platform Mobile App Development | Real-Time Video

More than 5+ years of work experience in software development with a depth understanding of Object Oriented programming. More than 4+ years of experience in building both IOS and Android mobile applications via flutter with skills and qualifications of designing, developing, testing, maintaining, and deploying. - RESTFUL APIs and integration of various APIs from third parties. - Comfortable using test cases for debugging code, enhancing performance and reliability. - Good understanding of bloc, Getx, riverpod state managements, Flutter flavors and app architecture. - Solid understanding of the Agile software development life cycle and been exposed to Scrum projects. - Familiarity using version control tools , Azure for repository and CI/CD in order to upload to Appstore testflight and playstore. - Strong communications and consultative skills. Self-initiated and proactive.

$54𝗞+ 𝗠𝗥𝗥 𝗯𝘂𝗶𝗹𝘁 𝗳𝗼𝗿 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 | 𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝘁𝗵𝗮𝘁 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗲 𝗿𝗲𝘃𝗲𝗻𝘂𝗲 Flutter Developer specializing in cross-platform iOS and Android mobile app development, from MVP to production release with a million downloads on both app stores. I've shipped 50+ Flutter mobile applications for both Android & iOS, including 2 𝐚𝐩𝐩𝐬 𝐰𝐢𝐭𝐡 1𝐌+ 𝐝𝐨𝐰𝐧𝐥𝐨𝐚𝐝𝐬 and a fintech platform processing €3M+ in monthly transactions across 100+ countries. Clients hire me when they need a Flutter developer who delivers production-ready mobile apps, not just prototypes. What I built: - Flutter cross-platform app development (iOS & Android) - Full MVP mobile app development; built in weeks, not months - Flutter app architecture (BLoC, Riverpod, Clean Architecture) - REST API integration & third-party SDK integration - Firebase integration (Auth, Firestore, FCM, Cloud Functions) - Supabase backend integration - Payment gateway integration (Stripe, in-app purchases, subscriptions) - Push notifications & real-time features - Geolocation & Maps integration (Google maps and Mapbox) - CI/CD deployment pipelines - Mobile analytics & attribution SDK integration (AppsFlyer, Meta SDK, Adjust) - App Store Optimization (ASO); metadata, screenshots, keywords - App Store & Google Play Store submission & release management - Retention & re-engagement setup (push campaigns, deep linking) - Flutter bug fixing, performance optimization & code refactoring - AI-powered Flutter apps, GPT integration, AI chat features, intelligent automation - AI-accelerated development using Cursor & Claude, faster delivery, cleaner code I also build apps as an indie developer. I've independently designed, built, and published my own Flutter apps in health, fitness, and productivity, apps that generate real revenue and rank in the App Store. This means when you bring me an app idea you want to monetize, I'm not just a developer executing a brief, I've been in your shoes. I understand user retention, ASO, in-app monetization, and what it takes to get downloads. For solo founders and indie app builders, this makes a real difference. I work across the complete Flutter mobile app development lifecycle: frontend Flutter development, API integration, testing, performance optimization, and App Store / Play Store release. Beyond large-scale apps, I help startups validate ideas with clean, scalable MVP architecture, structured for growth from day one. My approach: clean Flutter architecture. Reliable API integrations. Stable releases. Maintainable, scalable code. Top Rated Plus | 100% Job Success | $100K+ earned | 50+ apps delivered | 1 million app downloads Message me with your requirements and I'll outline the right technical direction.

Free-Consultation for First 30 minutes | Vibe Coding | Claude | Cursor AI | Windsurf | Anti-Gravity | Quick MVP Builder | Prototype Builder | UI/UX Developer - With over 11 years of experience in mobile app development and 6+ years building with Flutter, I’ve successfully delivered 50+ cross-platform apps across industries including e-commerce, fintech, healthcare, education, and lifestyle. I’m also proficient in FlutterFlow for rapid, low-code development and have integrated advanced AI features such as chatbots, recommendation engines, and GPT-4 powered interactions. You will get: 👍 Native development: I build high-performance native apps using Swift (iOS) and Kotlin/Java (Android) for maximum control and platform-specific optimization. 👍 Cross-platform excellence: I build sleek, scalable apps for iOS, Android, and Web from a single Flutter codebase. 👍 AI-Powered features: I integrate ChatGPT, machine learning, and predictive analytics for next-gen user experiences. 👍 Speed + Quality: Clean, well-documented code. Always on time. Always within scope. 👍 Full-cycle delivery: From UI/UX and prototyping to backend integration (Firebase, REST APIs) and deployment. 👍 FlutterFlow Expert: Ideal for MVPs and rapid delivery using low-code + custom logic. 🧠 Key Skills & Technologies: Flutter, Dart, FlutterFlow, Firebase, Supabase, Firebase Studio, Vibe Coder, RESTful APIs, Flutter Web, Git, App Store & Play Store Submission, Figma-to-Flutter, ChatGPT Integration, AI/ML (OpenAI, Gemini integration, Deepseek, Grok, TensorFlow Lite), UX/UI Design, Work Flows, Custom Widgets, Clean Architecture, Riverpod, GetX 💼 Whether you're a startup looking to launch fast or a business aiming to scale with intelligent apps, I bring both technical depth and product insight to deliver real value. 📩 Let’s talk – message me to discuss your app idea, get expert advice, or request a free consultation. I’m here to help you build something incredible!