Creating mobile apps in react native considered multiple-platform because they’re written once and deploy in many platforms for example android, ios, and the web.
Facebook developed the react-native in 2013 for its internal project hackathon. It was released for public use in January 2015 as react.js and also available in GitHub.
If you wish to create applications in native platforms like android and ios then react-native is the best choice to create native applications because in react native, you can write code once and deploy on many platforms.
Some of the most famous applications that are created in react-native for example Facebook, Facebook ads, Instagram, Shopify, Bloomberg, Discord, Skype, Tesla, Ubereats, Walmart.