Sultan K.

You need a developer who's actually shipped apps to the App Store and Play Store, not just built prototypes that never went live. Time Medics, Starcrossed AI, Rent Your Ride, Horizon RPM, all built by me. Full cycle: architecture, development, App Store submission, and post-launch support. WHY ME 🟢 Top Rated Plus (top 3% on Upwork) 🟢 $100K+ earned across 90+ projects 🟢 apps live on App Store and Play Store, built from scratch 🟢 One developer owning full product: mobile + web + backend ⭐⭐⭐⭐⭐ "Found Sultan excellent to work with. He was very responsive throughout and understood what was required. Was flexible as the." WHAT I BUILD ✅ React Native iOS & Android apps | Expo and CLI, TypeScript, App Store and Play Store submission ✅ Full Stack Web Apps | Next.js, React, Node.js, Express, MongoDB, PostgreSQL ✅ MVP & Startup Apps | investor-ready, production-grade, live in weeks ✅ Real-Time Features | Firebase, Supabase, Socket IO, push notifications, live updates ✅ Integrations | Stripe, RevenueCat, Google Maps, Apple/Google/Facebook login, OpenAI, Claude API ✅ App Store & Play Store Submission | code signing, provisioning, TestFlight, review compliance ✅ Legacy App Rescue | taking over broken React Native or Node.js codebases and making them production-ready HOW I WORK Feature-based architecture from day one so the codebase stays clean as it scales. I offer a short scope and estimation call before starting so you get clear timeline, approach, and cost before any commitment. WHO I WORK WITH 🔵 Founders launching a React Native MVP that needs to actually go live 🔵 SaaS teams adding a mobile app to an existing web product 🔵 Startups needing one developer to own both mobile and web 🔵 Agencies subcontracting React Native or full stack work 🔵 Teams rescuing a legacy codebase If you need a React Native app or full stack web application built right the first time, send me a message or invite me to your job. Cheers, Sultan Keywords: React Native, React Native CLI, React Native Expo, Expo EAS, React Native TypeScript, React Native Firebase, React Native Supabase, React Native Navigation, React Native Animations, React Native Push Notifications, React Native In-App Purchases, React Native Maps, React Native Camera, React Native Bluetooth, React Native NFC, React Native Socket IO, React Native Authentication, React Native Redux, React Native Zustand, React Native Performance Optimization, React JS, Next JS, Full Stack Development, Mobile App Development, Node JS, TypeScript, JavaScript, Firebase, Supabase, Expo, REST API, MongoDB, MVP Development, iOS Development, Android Development, Express JS, Redux, Zustand, React Query, GraphQL, PostgreSQL, Socket IO, Web App Development, SaaS Development, API Development, API Integration, Backend Development, Frontend Development, Cross-Platform Development, App Store Submission, Google Play Store, Push Notifications, Real-Time Applications, Cloud Functions, AWS, Docker, Git, Agile Development, Startup Development, Hybrid Mobile App, Database Design, Authentication, Stripe Integration, RevenueCat, OneSignal, Google Maps API, OpenAI API, Claude API, NFC, Bluetooth, Crash Analytics, TestFlight, CI/CD, Microservices, Serverless Architecture, WebSockets, Redux Toolkit, Context API, Styled Components, Tailwind CSS, Figma to Code, Responsive Design, Performance Optimization, Code Review, Technical Architecture, Legacy Code Rescue, App Modernization, SaaS MVP, B2B SaaS, HealthTech, FinTech, EdTech, PropTech, MarketPlace Apps, Social Apps, On Demand Apps