ReactJS is a JavaScript library for building user interfaces for web applications, whereas React Native is a framework for building mobile apps using React principles.
ReactJS is used on web browsers, while React Native is used on iOS and Android mobile devices.
ReactJS outputs HTML, CSS, and JavaScript in the browser, whereas React Native uses native mobile components instead of HTML.
ReactJS primarily focuses on building interactive websites and web apps, while React Native is used for building cross-platform mobile apps.