Build a real-time chat mobile application in React Native based on WhatsApp's UI design. Learn to create a full-stack mobile app from scratch, starting with setting up a React Native project using Expo and progressing to building the backend with AWS Amplify. Master UI layout design, component structuring, navigation implementation, and integration of real-time chat functionalities using GraphQL subscriptions. Explore modern JavaScript practices, functional components, hooks, state management, and AWS services. Perfect for beginners and advanced developers alike, this comprehensive tutorial covers everything from project setup to advanced features like creating groups, managing group information, and handling user interactions within group chats.