React Native is stable because it’s backed by Facebook and has been tested by thousands of developers since its release in 2015. Because of its stability, you’ll save time debugging common issues that can occur with mobile applications during mobile application developers or after deployment.
React Native is easy to maintain since it uses Javascript on both client-side as well as server-side ios app development and android app development. This means if something breaks on one platform, you only need to fix it once instead of twice (once for each platform).