Why React Native is so popular?

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.

Ionic React is web-first, meaning that it implements native iOS and Android UI patterns using cross-platform, standards-based web technology instead of accessing platform UI controls directly. In contrast, React Native provides an abstraction through React that controls platform UI controls directly .

React Native aids with code reusability . It doesn’t require developers to write code multiple times for the same logic. This also makes the mobile app consistent for users on a range of devices. Approximate code reusability achieved is 90-95% across iOS and Android devices.