React is an abstraction on top of the underlying APIs (in the case of ReactDOM that's the JS API for the DOM, in the case of React Native that's JS wrappers aro

React is an abstraction on top of the underlying APIs (in the case of ReactDOM that's the JS API for the DOM, in the case of React Native that's JS wrappers around the native APIs). Cordova and Electron (and nwjs) are just ways to bundle apps running in a stripped down browser rendering HTML and CSS.