React Native enables developers to build native mobile applications using JavaScript and React. Unlike hybrid frameworks, React Native compiles to native code, delivering performance comparable to native apps. With React Native, you can share up to 90% of code between iOS and Android platforms, significantly reducing development time and costs. The framework provides access to native APIs, supports hot reloading for faster development, and has a vast ecosystem of libraries. Companies like Facebook, Instagram, and Airbnb have built their apps with React Native.