Yash G.

Flutter Developer | Mobile App Developer | AI & React Native

Hi, I’m Yash Gupta 👋 I’m a Top Rated Flutter & React Native Developer with 6+ years of experience building mobile apps for iOS and Android. I mainly help startups, founders, and businesses: ✦ Build apps from scratch ✦ Turn ideas and MVPs into production-ready apps ✦ Improve existing mobile apps ✦ Fix bugs, crashes, and performance issues ✦ Take over unfinished projects from previous developers ✦ Add AI features and third-party integrations A lot of clients come to me when they have an unfinished app, a buggy codebase, or an idea they want to turn into a real product. That’s usually where I step in. What I can help you with Mobile App Development → Flutter & Dart → React Native (CLI & Expo) → Cross-platform apps for iOS & Android → Modern and user-friendly UI → App optimization and bug fixing → App Store & Play Store deployment → Authentication & user management Full Stack Development → Node.js & REST APIs → React.js & Next.js → GraphQL → Third-party API integrations → MongoDB, PostgreSQL, MySQL → Firebase & Supabase → AWS AI Features → OpenAI / ChatGPT API integration → Claude API integration → AI chatbots & assistants → AI-powered mobile apps → Smart automation features → Document & image analysis Industries I’ve worked with ✦ E-commerce & Marketplace ✦ Healthcare & Wellness ✦ FinTech & Payment Apps ✦ EdTech & AI Education ✦ Logistics & Delivery ✦ SaaS & Startup MVPs ✦ Booking & Service Apps ✦ Social Networking Apps ✦ Fitness & Lifestyle Apps I’m also a founder and have built and launched my own products, including QRPulse, TradeBeep, Let’s Barter, and Zentix Math AI. That means I understand more than just development. I’ve dealt with App Store reviews, subscriptions, analytics, push notifications, production bugs, ASO, and post-launch improvements. How I usually work I like to keep things simple and clear. 1. Understand your idea and requirements 2. Suggest the best technical approach 3. Break the work into clear milestones 4. Build and share regular test versions 5. Test everything properly 6. Launch and provide ongoing support No over-promising. No black-box development. Just clear communication and reliable work. Why clients work with me → Top Rated on Upwork → 54+ jobs completed → 1,100+ Upwork hours → 4.9/5 rating → 6+ years of experience → Experience building real products → Clean and maintainable code → Long-term support Let’s build it If you have an app idea, need help improving an existing app, or have a project that another developer couldn’t complete, feel free to send me a message. We can discuss your requirements and see if I’m the right fit 👍 Keywords Flutter Developer | Flutter Expert | Flutter App Developer | Flutter Mobile App Developer | React Native Developer | React Native Expert | React Native App Developer | React Native Mobile App Developer | Mobile App Developer | Mobile Application Developer | Cross Platform App Developer | Hybrid App Developer | React Native CLI | React Native Expo | Expo Developer | iOS Developer | Android Developer | iOS App Developer | Android App Developer | Mobile UI Developer | App Performance Optimization | Mobile App Optimization | App Maintenance | App Bug Fixing | App Rescue | App Deployment | App Store Deployment | Google Play Deployment | Full Stack Developer | Full Stack Mobile Developer | Frontend Developer | Backend Developer | Node.js Developer | React.js Developer | Next.js Developer | JavaScript Developer | TypeScript Developer | REST API Developer | GraphQL Developer | API Integration | Third Party API Integration | MongoDB | PostgreSQL | MySQL | Firebase | Firebase Developer | Firestore | Supabase | AWS | AI Mobile App Developer | AI App Developer | OpenAI API | ChatGPT Integration | Claude API | AI Chatbot Developer | Generative AI | AI Automation | AI Integration | AI Powered Mobile Apps | Startup MVP Developer | SaaS Application Developer | Scalable App Development | Marketplace App Developer | E-commerce App Developer | Booking App Developer | Delivery App Developer | FinTech App Developer | Healthcare App Developer | EdTech App Developer | Social Networking App Developer | Real Time App Developer | Push Notification Integration | Payment Gateway Integration | Stripe Integration | RevenueCat | Razorpay Integration | PayPal Integration | Google Maps Integration | GPS Tracking App Developer | Mobile Backend Developer | API Development | App Scaling | Secure Mobile App Development | Mobile App Testing | Mobile App Support | Performance Tuning | Real Time Chat App Developer | AI Chatbot Integration | OpenAI ChatGPT Apps | Enterprise Mobile Apps | Business App Developer | Startup App Developer | SaaS Developer | MVP App Development | Mobile Product Development