I am looking for any advice on what the benefits of Kotlin or React would be for an Android only app, which will be running on some older hardware - 4.4.2, and will need to run offline syncing data to a backend server

1. What are the developer benefits

2. What are the end-user benefits

3. Any pit-falls to watch out for, when selecting one or another?

4. Overall which will be better for the end users

Update 1: Came across this article https://medium.com/mop-developers/mobile-app-development-react-native-vs-native-ios-android-49c5c168045b which points more to Kotlin (not decided yet)