Sufyan T.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I help startups, SaaS founders, and product teams build high-performance React Native mobile applications that generate recurring revenue through In-App Purchases (IAP), subscriptions, and mobile monetization. With 6+ years of experience in Mobile Application Development, I've built and launched 10+ cross-platform apps for iOS and Android, specializing in subscription-based products, RevenueCat integration, StoreKit 2, Google Play Billing Library, and Auto-Renewable Subscriptions. My expertise includes: ✅ React Native Development (JavaScript & TypeScript) ✅ Cross-Platform Mobile App Development ✅ Expo & Expo EAS Build ✅ In-App Purchases (IAP) ✅ RevenueCat Integration ✅ StoreKit 2 ✅ Google Play Billing ✅ Subscription Management & Paywall Optimization ✅ Stripe, PayPal & Payment Gateway Integration ✅ REST API & GraphQL Integration ✅ Firebase Authentication ✅ Firestore Database ✅ Firebase Cloud Messaging (FCM) ✅ Push Notifications ✅ Firebase Analytics & Crashlytics ✅ React Navigation ✅ Redux Toolkit, Zustand & React Query ✅ Google Maps & Mapbox ✅ OAuth Authentication ✅ Google Sign-In ✅ Apple Sign In ✅ Facebook Login ✅ Deep Linking ✅ App Performance Optimization ✅ Mobile App Security ✅ CI/CD & GitHub ✅ App Store Connect ✅ Google Play Console ✅ TestFlight Deployment ✅ Fastlane Automation ✅ Bug Fixing & App Maintenance I help clients with: • Startup MVP Development • SaaS Mobile Apps • Subscription Apps • Membership Platforms • Consumer Mobile Apps • Mobile App Scaling • React Native Migration & Upgrades • Legacy App Modernization • Long-term Product Development Why clients hire me: ✔ Clean, scalable mobile architecture ✔ Full subscription lifecycle implementation—from paywall design to receipt validation and subscription management ✔ Fast communication and reliable delivery ✔ Performance-focused, maintainable code ✔ 100% Job Success with consistent 5-star client satisfaction Whether you need a React Native Developer, Mobile App Developer, RevenueCat expert, IAP implementation, subscription management, or a complete cross-platform mobile application, I can help you build a product that users love and that generates recurring revenue.