Cuong N.

Need a reliable mobile app developer to turn your idea into a high-quality product? I help startups, businesses, and product teams design, build, and maintain native iOS and Android applications that deliver great user experiences and perform reliably in production. With 10+ years of experience and 70+ apps shipped, I help startups and businesses build high-quality, scalable iOS and Android applications. MY EXPERTISE: 📱 Mobile App Development Native iOS: Swift, SwiftUI, UIKit, Objective-C Native Android: Kotlin, Java Cross-platform: React Native App architecture, performance optimization and maintenance ⚡ AI-POWERED DEVELOPMENT I leverage modern AI coding tools such as Claude Code, OpenAI Codex, and ChatGPT to accelerate development, streamline workflows, and solve technical challenges more efficiently. Combined with 10+ years of engineering experience, I use AI to speed up delivery while maintaining control over code quality, architecture, debugging, and testing. 🧠 AI & API Integration OpenAI, AI chatbots and LLM integration AI-powered voice, image and video features REST APIs, Firebase, Supabase and third-party SDKs ⚙️ Additional Features In-app purchases and subscription paywalls Push notifications, analytics and authentication GPS, Google Maps, Apple MapKit QR codes, barcodes, NFC and video streaming ⭐ WHY WORK WITH ME? Top Rated Upwork freelancer, 70+ apps shipped $100K+ earned and 50+ completed jobs Clean, maintainable, and scalable code Proactive communication and long-term commitment I'm always happy to discuss your project and explore how I can help turn your ideas into successful mobile products. Have an idea or an existing app that needs improvement? Let's discuss your project!