I need both a polished mobile app (iOS + Android) and a matching website developed from the ground up. The core feature set is already clear: secure user authentication, real-time push notifications, and friction-free in-app purchases. I’ll supply the concept and brand assets; you’ll transform them into a fast, scalable, production-ready product. A shared backend or single code source is preferred so data stays perfectly in sync between web and mobile. I’m flexible on stack—React Native, Flutter, Swift/Kotlin for the app side and React, Next.js, Node, Django, or Laravel for the web are all fine—as long as performance, clean architecture, and maintainable code are at the heart of your approach. Deliverables • Responsive website deployed to live hosting • iOS and Android apps released to the App Store & Google Play • Robust API with secure auth (REST or GraphQL) • Push notification service configured and tested • In-app purchase flow verified in sandbox and production • Deployment scripts plus concise hand-off documentation Show me examples of similar full-stack builds you’ve already shipped—links, screenshots, or store listings are ideal. I’m weighing proven experience above lengthy proposals. Once we align on tech choices and timeline, we’ll lock down milestones and move swiftly toward launch.