Hire the Best DART Developers

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Rating is 4.8 out of 5.
4.8/5
Based on 2,115 client reviews
Muhammad Usman A.

Lahore, Pakistan

$15/hr
5.0
5 jobs

I've been building Flutter apps since the public beta in 2018, back when half the packages didn't exist yet and you had to write a lot of things yourself. That background means I don't just know how to use Flutter; I understand why it works the way it does, and how to get the most out of it when a project gets complex. Over the past 10 years I've shipped 40+ cross-platform iOS and Android apps across fintech, healthcare, e-commerce, and enterprise, everything from solo builds to leading teams of 8+ developers. Some of those apps are sitting at millions of active users right now. STATE MANAGEMENT & ARCHITECTURE I work primarily with BLoC / Cubit for enterprise-scale apps, Riverpod for modern reactive setups, and GetX or Provider for lighter projects. I don't have a religion about state management, I pick what fits the project. On the architecture side, I follow Clean Architecture with feature-first modular structure, Repository Pattern, and proper dependency injection using GetIt or Injectable. MVVM and DDD where the domain complexity warrants it. FLUTTER & DART CORE Flutter SDK 3.x, Dart 3.x with full Null Safety. I'm comfortable deep in the framework, CustomPainter, RenderObjects, Slivers, Platform Channels (MethodChannel, EventChannel), Dart Isolates for heavy computation, and Flutter DevTools for performance profiling. Navigation with GoRouter or AutoRoute. Animations from Hero and Tween through to Rive and Lottie. FIREBASE & BACKEND INTEGRATION Firestore, Realtime Database, Firebase Auth, FCM push notifications, Remote Config, A/B Testing, Crashlytics, and Cloud Functions. For APIs: Dio with Retrofit is my standard, graphql_flutter or Ferry for GraphQL, and socket_io_client or web_socket_channel for real-time. I've also integrated Supabase, AWS Amplify, and Appwrite on various projects. PAYMENTS, MAPS & THIRD-PARTY SDKs Stripe (flutter_stripe), In-App Purchase with RevenueCat, Google Maps and flutter_map, Agora and Twilio for real-time voice/video, and analytics via Mixpanel, Amplitude, and Firebase Analytics. LOCAL STORAGE & OFFLINE-FIRST Hive and Isar for fast local NoSQL, sqflite and Drift for relational data, flutter_secure_storage for sensitive data. I architect offline-first where needed, local cache, background sync, conflict resolution. TESTING & CI/CD Unit, widget, and integration testing with flutter_test, Mockito, and Mocktail. Golden tests for UI regression. For CI/CD I use Codemagic (Flutter-native, preferred), Fastlane, GitHub Actions, and Bitrise. Delivery via TestFlight and Google Play tracks, staging through Firebase App Distribution. UI & DESIGN HANDOFF Pixel-perfect Figma to Flutter with responsive and adaptive layouts using LayoutBuilder and MediaQuery. Material 3 (Material You), Cupertino widgets, dynamic theming, dark mode, and accessibility with Semantics. Also fluent in FlutterFlow for rapid prototyping with custom code injection. One thing clients mention consistently: I communicate clearly and early, not just when something is done, but when something needs a decision or looks like it could become a problem. That kind of transparency tends to make projects go smoother. If you have a Flutter project, whether it's greenfield, a rescue, or needs a senior hand on an existing codebase, I'm happy to have a quick call and tell you honestly what it would take.

  • Dart
  • Flutter
  • Mobile App Development
  • Android App Development
  • iOS Development
  • REST API
  • GraphQL
  • Firebase
  • Push Notifications
  • App Store Optimization
  • FlutterFlow
  • API Integration
  • Firebase Realtime Database
  • Payment Gateway Integration
  • Agile Project Management
  • Payment Functionality
  • User Profile Creation
  • Hybrid App Development
  • Smartphone
  • Swift
Vaibhav sultania S.

Pune, India

$10/hr
4.9
47 jobs

๐Ÿ† 15+ Years Experience | 1M+ App Downloads If youโ€™re looking for top-quality App development, not just average work โ€” youโ€™ve come to the right place. I build high-performing, scalable, and beautifully crafted Mobile, Web & Desktop apps that clients rely on for the long term in real quick time using AI & LLM tools. With 15+ years of experience and apps exceeding 1 Million+ downloads on the Play Store, Iโ€™ve worked with startups and established brands to turn complex ideas into stable, user-loved apps. Clients stay with me because I focus on code quality, performance, and results โ€” not shortcuts. โธป ๐Ÿ’ก What I Offer โœ… Production-ready apps โœ… Clean, modular, and testable architecture โœ… Clear communication & reliable delivery โœ… Long-term collaboration and maintenance support โธป โš™๏ธ Technical Expertise Flutter & Dart: Riverpod, Provider, BLoC React & React native Testing: Unit, widget, and integration tests AI Integration: ChatGPT & Google Gemini Chat Systems: 1-to-1 & group chat with voice, video & attachments Video Calling: Conferencing via LiveKit / WebRTC Maps: Google Maps & vector maps Deep Linking: App Links & Universal Links Analytics: Google Analytics, Amplitude Marketing: Appsflyer Payments: Stripe & in-app purchases Ads: Google Ads integration Firebase Suite: Auth, Firestore, Storage, Messaging, Functions, Hosting, Dynamic Links, Remote Config, App Distribution Supabase Suite: Auth, Database, edge functions, storage โธป ๐Ÿš€ Letโ€™s Build Something Exceptional I take pride in my work โ€” every line of code reflects that. If you want a developer who values quality, communication, and craftsmanship, letโ€™s connect and discuss how I can help bring your vision to life.

  • Dart
  • Mobile App Development
  • Flutter
  • Firebase
  • Web Application
  • Supabase
  • AI Mobile App Development
  • Mobile App
  • Android App
  • iOS Development
  • Android App Development
  • Mobile App Bug Fix
  • Web Development
  • Mobile App Development Consultation
  • Web Development Consultation
  • React Native
  • Desktop Application
Kadir E.

Istanbul, Turkey

$25/hr
5.0
23 jobs

๐Ÿ‘‘ Top Rated Flutter Developer with 100% Job Success ๐Ÿ‘‘ Iโ€™m a senior Flutter developer with 5+ years of experience building apps for iOS, Android, web, and desktop. I can build your app from scratch, join your existing team, or help fix and improve your current Flutter project. If you have daily or weekly meetings, count me in. I can work with your designers, backend developers, project managers, or other mobile developers without any problem. I mostly work with Flutter, Clean Architecture, BLoC/Cubit, Riverpod, GetIt, REST APIs, Firebase, payments, subscriptions, notifications, maps, audio/video, real-time chat, and native iOS/Android integrations. I have built different types of apps, including fintech, banking, AI wellness, habit tracker, social media, health, fitness, meditation, GPS, task management, e-commerce, marketplace, and business apps. What you can expect from me: * Clean Flutter code * Clear communication * Regular updates * Fast and careful development * Good attention to bugs and edge cases * Support after release if needed I care about building apps properly. Not just something that works for now, but something stable, clean, and easy to improve later. If you need a reliable Flutter developer who can take responsibility and move your project forward, feel free to send me an invite.

  • Dart
  • Flutter
  • FlutterFlow
  • iOS
  • Android
  • Firebase
  • AI Mobile App Development
  • In-App Subscription
  • HealthKit
  • Stripe
  • Push Notifications
  • Supabase
  • API Integration
  • Geolocation
  • In-App Purchases
  • Chat & Messaging Software
  • Mobile App Design
  • Mobile App Development
  • Hybrid App Development
  • Map Integration
Sahil K.

Surat, India

$10/hr
5.0
11 jobs

โญ TOP RATED FLUTTER MOBILE APP DEVELOPER | ANDROID โ€ข IOS โ€ข FIREBASE โ€ข AI APPS Need a Flutter developer who can build, scale, and maintain a production-ready mobile app? I help startups, founders, and businesses build high-performance Flutter applications that work seamlessly across Android, iOS, Web, and Desktop. With 3+ years of experience, Top Rated status on Upwork, and multiple successful app launches, I focus on building scalable, maintainable, and business-oriented mobile applications. ๐Ÿš€ WHAT I CAN BUILD โœ” Flutter Mobile Apps (Android & iOS) โœ” Flutter Web Applications โœ” SaaS MVP Development โœ” Firebase & Supabase Integration โœ” AI-Powered Mobile Applications โœ” Real-Time Chat Applications โœ” E-commerce Applications โœ” Booking & Marketplace Platforms โœ” Social Media Applications โœ” Healthcare & Telemedicine Apps โœ” Education & E-learning Platforms โœ” Sports & Prediction Applications โœ” Business Management Systems โšก CORE EXPERTISE โ€ข Flutter & Dart โ€ข Firebase (Firestore, Authentication, Cloud Functions, FCM) โ€ข Supabase โ€ข REST APIs & GraphQL โ€ข GetX, BLoC, Provider, Riverpod โ€ข Clean Architecture & MVVM โ€ข Google Maps & Geolocation โ€ข Stripe & Razorpay Integration โ€ข In-App Purchases & Subscriptions โ€ข Push Notifications โ€ข AI Integration (OpenAI, ChatGPT, OCR, Voice Features) โ€ข CI/CD & Store Deployment ๐Ÿ“ˆ WHY CLIENTS HIRE ME โ€ข Clean & Scalable Code โ€ข Fast Communication โ€ข On-Time Delivery โ€ข Strong Problem Solving โ€ข Long-Term Support โ€ข Business-Focused Development I don't just build appsโ€”I help turn ideas into products that users actually use and businesses can grow. Whether you need an MVP, a complete mobile application, feature development, bug fixing, API integration, Firebase setup, or App Store/Play Store deployment, I can help. Let's discuss your project and create a clear roadmap for success. Best Regards, Sahil Khunt KEYWORDS: Flutter, Dart, Flutter Mobile App Developer, Dart Developer, OpenAI API, Full Stack Developer, Back End Developers, API, API Developer, Node.js, Node.js Developer, SQL, App Developer, App, Mobile App Development, Mobile App Developer, Android App Development, Android App Developer, Mobile App, AI Mobile App Development, AI Mobile App Developer, Mobile App Design, Mobile UI Design, Responsive Design, UI/UX Designer, Prototyping, Mobile App UI, Mobile App API, Mobile Application, Mobile Application Developer, Mobile Application Developement, iOS, Android, iOS App, Android App, iOS Application, Flutter iOS, Flutter iOS Android, Hybrid App, Hybrid App Development, Hybrid App Developer, Cross Platform Mobile Development, Cross Platform Mobile Developer, Cross Platform App Developer, Cross Platform App Development, Express.js, RESTful API, Express API, API Integration, Mobile App API Integration, App API Integration, Expert Full Stack Developer, Full Stack Mobile App Developer, Expert Full Stack Mobile App Developer, AI Mobile App, Mobile, Application, Application Development, Application Developer, Application Designer, Application API Integration, Build App, Build Mobile App, Flutter App Developer, iOS App Developer, Cross-Platform Mobile Developer, Machine Learning App Integration, Senior Mobile App Developer, Flutter Mobile App Development, Flutter Developer, Software Designer

  • Dart
  • Flutter
  • Mobile App Development
  • App Development
  • FlutterFlow
  • Flutter Stack
  • Smartphone
  • Firebase
  • API Integration
  • Web Application
  • Android App Development
  • iOS Development
  • AI App Development
  • Hybrid App Development
  • Mobile App Development Consultation
  • AI Mobile App Development
  • Mobile App Bug Fix
  • Website to Mobile App Conversion
  • Mobile App Design
Md Rabin M.

Banani Model Town, Bangladesh

$8/hr
5.0
7 jobs

Hi there, Building a mobile app is easy โ€” building one that is fast, scalable, and ready for real users is where most developers fail. I help startups and businesses turn ideas into high-quality Flutter apps that are clean, scalable, and production-ready. ๐—›๐—ผ๐˜„ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—”๐—ฝ๐—ฝ ๐—š๐—ผ๐—ฒ๐˜€ ๐—™๐—ฟ๐—ผ๐—บ ๐—œ๐—ฑ๐—ฒ๐—ฎ โ†’ ๐—Ÿ๐—ฎ๐˜‚๐—ป๐—ฐ๐—ต: I follow a structured development process: โ†’ UI implementation (Pixel-perfect Flutter UI) โ†’ API integration (Laravel / REST APIs) โ†’ State management & app logic โ†’ Testing & performance optimization โ†’ App deployment (Play Store & App Store) This ensures your app is stable, smooth, and ready to scale. #FREE consultation available: I can help you: โ†’ Validate your app idea โ†’ Plan features & MVP โ†’ Choose the right backend & architecture โ†’ Estimate cost & timeline ๐—ง๐˜†๐—ฝ๐—ฒ๐˜€ ๐—ผ๐—ณ ๐—”๐—ฝ๐—ฝ๐˜€ ๐—œ ๐—•๐˜‚๐—ถ๐—น๐—ฑ: I donโ€™t just build basic apps โ€” I build real-world applications: โœ… Service booking apps โœ… Marketplace apps (multi-vendor / multi-role) โœ… E-commerce mobile apps โœ… Appointment & scheduling apps โœ… Food delivery / ordering apps โœ… Subscription-based apps โœ… Business & admin apps โœ… Custom startup MVP apps ๐—ง๐—ฒ๐—ฐ๐—ต๐—ป๐—ถ๐—ฐ๐—ฎ๐—น ๐—ฆ๐˜๐—ฟ๐—ฒ๐—ป๐—ด๐˜๐—ต: โ†’ Flutter (Dart) โ†’ Firebase (Auth, Firestore, Notifications) โ†’ REST API integration โ†’ Laravel backend (for scalable systems) โ†’ Payment gateway integration โ†’ Push notifications โ†’ Clean architecture & reusable code ๐—ช๐—ต๐˜† ๐—–๐—น๐—ถ๐—ฒ๐—ป๐˜๐˜€ ๐—ช๐—ผ๐—ฟ๐—ธ ๐—ช๐—ถ๐˜๐—ต ๐— ๐—ฒ: โ†’ I understand both frontend + backend (full system mindset) โ†’ I focus on performance & user experience โ†’ I communicate clearly and deliver on time โ†’ I build apps that are ready for real users โ€” not just demos ๐—ฃ๐—ผ๐˜€๐˜-๐—Ÿ๐—ฎ๐˜‚๐—ป๐—ฐ๐—ต ๐—ฆ๐˜‚๐—ฝ๐—ฝ๐—ผ๐—ฟ๐˜ I provide support after delivery to fix issues, improve performance, and help you scale your app. If you're looking for a Flutter developer who can actually deliver a complete, working app โ€” letโ€™s connect. Send me a message and letโ€™s get started.

  • Dart
  • Android App Development
  • App Development
  • iOS Development
  • Mobile App
  • Flutter
  • Firebase
  • API
  • Postman
  • Push Notifications
  • Payment Gateway Integration
  • Payment Functionality
  • PayPal Integration
  • Stripe API
  • AI App Development
Viraj M.

Surat, India

$15/hr
5.0
80 jobs

Are you a founder with an app idea but no clue where to start? I've helped 90+ Clients go from rough concept to live products, and I can do the same for you. ๐ˆ'๐ฆ ๐•๐ข๐ซ๐š๐ฃ ๐Œ๐จ๐ซ๐š๐๐ข๐ฒ๐š, a Mobile App Developer with ๐Ÿ”+ ๐ฒ๐ž๐š๐ซ๐ฌ ๐จ๐Ÿ ๐ž๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž building mobile apps across industries like health & fitness, food delivery, ecommerce, AI tools, and more. ๐Ÿ† ๐Š๐ž๐ฒ ๐š๐œ๐ก๐ข๐ž๐ฏ๐ž๐ฆ๐ž๐ง๐ญ๐ฌ: โ†’ 90+ apps delivered with 100% Job Success and consistent 5-star client ratings โ†’ Ranked among the top 2% of Mobile App Developers on Upwork โ†’ Helped clients launch apps that reached 500k+ downloads โ†’ Reduced project delivery times by up to 30% for multiple clients ๐–๐ก๐š๐ญ ๐ฆ๐š๐ค๐ž๐ฌ ๐ฐ๐จ๐ซ๐ค๐ข๐ง๐  ๐ฐ๐ข๐ญ๐ก ๐ฆ๐ž ๐๐ข๐Ÿ๐Ÿ๐ž๐ซ๐ž๐ง๐ญ? โ†’ I keep things simple and transparent. Before any code is written, we agree on milestones, timelines, and costs, so there are no surprises along the way. You get regular updates, honest feedback, and an app that's ready for real users when we're done. โœจ ๐‡๐จ๐ฐ ๐ˆ ๐–๐จ๐ซ๐ค: I keep things transparent and simple from day one: 1. Discovery โ†’ I learn your idea, goals, and users deeply before writing a single line of code 2. Planning โ†’ I break the project into clear milestones with timelines and costs agreed upfront, no moving goalposts 3. Build โ†’ Clean, scalable Flutter code with regular updates so you're never left wondering what's happening 4. Launch โ†’ Full App Store & Play Store submission, tested and ready for real users No ghost updates. No surprise costs. Just a working app, delivered as agreed. โœจ ๐–๐ก๐š๐ญ ๐ˆ ๐จ๐Ÿ๐Ÿ๐ž๐ซ: โ†’ End-to-end app development: MVPs, SaaS solutions, and fully custom mobile apps โ†’ Expertise in Flutter, Firebase, Supabase, custom APIs, AI/ChatGPT integrations, in-app purchases, and advanced API systems โ†’ Fast, secure, and user-friendly apps tailored to your business goals โœจ ๐ˆ๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ข๐ž๐ฌ & ๐€๐ฉ๐ฉ ๐ƒ๐จ๐ฆ๐š๐ข๐ง๐ฌ ๐ˆโ€™๐ฏ๐ž ๐–๐จ๐ซ๐ค๐ž๐ ๐ˆ๐ง:โ€จ โœ” AI-Powered Mobile App โœ” Social Media Mobile App โœ” Ecommerce/marketplace Mobile App โœ” Finance and budget management Mobile App โœ” Health, Fitness & Wellness Mobile App โœ” Education app development, edTech Mobile App โœ” On-Demand Service Mobile App (Laundry, Salon, Home Care, etc.) โœ” Food Delivery Mobile App Development with Real-Time Tracking โœ” Marketplace Mobile Apps with Stripe/PayPal Integration โœ” Productivity, To-Do & Task Management Mobile Applications โœ” Travel, Hotel & Ticket Booking Mobile Applications โœ” Real Estate Mobile Apps & Property Listing Mobile Apps โœ” Sports, Events & Entertainment Mobile Applications โœ” MVP Mobile App Development for Startups & Businesses โœ” Health & Fitness Mobile App โœ” Video Streaming Mobile App ๐ŸŒŸ ๐–๐ก๐š๐ญ ๐‚๐ฅ๐ข๐ž๐ง๐ญ๐ฌ ๐’๐š๐ฒ ๐€๐›๐จ๐ฎ๐ญ ๐Œ๐ฒ ๐–๐จ๐ซ๐ค: ๐•๐ข๐ค ๐Œ๐š๐ง๐ง๐ž โญโญโญโญโญ "Viraj was responsive and paid attention to the details and turned around the project on time. Recommend him and wouldn't hesitate to re-hire. Unlike some freelancers who think they know it all and have an attitude, Viraj is easy to work with." ๐Œ๐š๐ฅ๐œ๐จ๐ฆ ๐‰๐ž๐ง๐ค๐ข๐ง๐ฌ โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "Awesome experience - we completed the app in the timeframe originally agreed upon and it was live on the app store as promised. From the concept to the design to the actual app build, it was a smooth experience." โœจ ๐‹๐ž๐ญ'๐ฌ ๐๐ฎ๐ข๐ฅ๐ ๐˜๐จ๐ฎ๐ซ ๐๐ž๐ฑ๐ญ ๐€๐ฉ๐ฉ Have a mobile app idea or an existing one to upgrade? Letโ€™s connect, Iโ€™ll share a short, clear plan. ๐Ÿšจ Send me your app idea and I'll reply within 8 hours with honest feedback Best Regards, Viraj Moradiya ๐Ÿ”‘ ๐…๐ข๐ง๐ ๐Œ๐ž ๐”๐ฌ๐ข๐ง๐  ๐“๐ก๐ž๐ฌ๐ž ๐Š๐ž๐ฒ๐ฐ๐จ๐ซ๐๐ฌ: Flutter developer | Mobile app developer | App development | App development company | Mobile app development company | Android app development | Mobile application development | Freelance app developer | Flutter app development | Flutter app | Flutter mobile app | Flutter application | Flutter mobile application | Flutter mobile app developer | Full stack flutter developer | Flutter app | Flutter app developer | AI app developer | Flutter Supabase | Mobile app development | MVP app development | MVP App developer | application developer | Ai application developer | Full stack developer flutter | Flutter expert | MVP developer | MVP app developer | Fitness app developer | AI mobile app developer | Hire Mobile app developer | Hire iPhone developer | Android app developer | iOS app developer | iPhone app developer | Swift | iPad app developer | iOS development | Fitness app developer | App developer | Ai Mobile app developer | Mobile application develper | AI App developer | App developer | MVP App developer | Real estate app development | Healthcare app development | App Development | AI App developer

  • Dart
  • Flutter
  • App Development
  • Mobile App
  • Android
  • Mobile App Development
  • Mobile App Design
  • Hybrid App Development
  • Smartphone
  • Flutter Stack
  • Android App Development
  • iOS Development
  • User Profile Creation
  • AI Mobile App Development
  • Firebase
  • Android App
  • Mobile App Development Consultation
  • Swift
  • iPad App Development
  • iPhone & iPad Apps

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