Tarun K.

Top Rated React Native mobile app developer with $50K+ earned on Upwork. I build, fix and ship iOS and Android apps with Firebase, AI features, in-app purchases and App Store and Google Play releases. What I can do for you • iOS and Android apps: cross-platform mobile apps in React Native and Expo with TypeScript, from first screen to store release. • Firebase: push notifications, analytics and GA4 tracking, crash reporting and backend services. • AI features: chat, image analysis and recommendations built into your app. • Existing apps: crash and bug fixes, performance work, Expo SDK upgrades and New Architecture migrations. • App Store and Google Play: submission prep, review fixes, compatibility updates and release support. • Payments and accounts: in-app purchases, subscriptions, sign-in and user authentication. • Backend and APIs: REST API integration and Node.js support, so the app and server work together. Recent work • A Korean-American community app (KUSA) with forums, messaging and leaderboards. • A travel companion app (Charta) for planning trips, with itineraries and live flight updates. • Firebase Analytics and GA4 setup for a live React Native app on iOS and Android. • Long-term maintenance and feature work on an existing React Native app. How I work I reply quickly, share progress in short written updates, and tell you early if something will take longer than planned. You always know where your app stands. Have a React Native app to build, fix or release? Send me a message with what you need and I’ll reply with next steps. React Native Mobile App Development iOS Development Android App Development Hybrid App Development TypeScript AI Mobile App Development API Integration Mobile App Mobile App Development Consultation Mobile App Design Android iOS Flutter Firebase Node.js User Authentication In-App Purchases Smartphone iPad App Development