Since the launch of react-native, it has been used frequently and thousands of mobile app development companies have adopted react native app development company including known apps like Facebook, Instagram, Uber, Skype, and Pinterest.
JavaScript has been the key source of its success, it has been its heart as you don't have to write the code from starting iOS and Android, one can use the single code for developing in both platforms. It saves time, effort, and resources while developing with react native. The user interface of react native app development (https://www.franticpro.com/react-native-app-development/) is smooth and easy to use, for iOS and Android.