React Native is a cross-platform app development framework that helps the app developers to make eye-catching cross-platform apps. It was released by Facebook and is a more accessible medium to develop cross platform apps to mobile app development companies. A cross-platform of the Hybrid app is compatible with many platforms which include Android and iOS platforms.Earlier if a business needed to deploy its app on two of the world's most popular app platforms:- Android and iOS, then they would need to develop separate apps for both Android as well as iOS. These apps were called as native apps. Building a React Native app is much more cost-effective than building native apps; let's see how.