Frontend developers utilize a variety of tools. Discussion of these tools and arguing which one is the best will easily grow in a holy war, as every developer has his own preferences in terms of methods of working and using programming languages. That is why the wisest decision one can make is to test different JS frameworks by his own and choose what is best for fulfilling his personal tasks. This is what programmers do when they want to assess something.
React offers React Native library, which can be used for developing mobile apps in JS. It looks very similar to React.JS, so if you know how to use React, you’ll quickly understand how to use it. React Native lets create a working mobile app without any professional knowledge and skills.