Short answer is that react-native builds mobile apps for iOS, Android, and Windows Mobile that you can compile and put in the app stores for users to install. Reactjs is for building web pages for use in a web browser.
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React Native combines the best parts of native development with React, a best-in-class JavaScript library for building user interfaces . Use a little—or a lot. You can use React Native today in your existing Android and iOS projects or you can create a whole new app from scratch.
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