There are several reasons why React Native is great for building mobile apps:

1. Cross-platform compatibility: React Native allows developers to build native apps for both Android and iOS using a single codebase, which saves time and resources.

2. High performance: React Native uses native components rather than webview, which provides a smooth and responsive user experience.

3. Easy to learn: React Native uses JavaScript, which is a popular programming language that many developers already know. This makes it easy for developers to pick up and start building apps quickly.

4. Strong community: React Native has a large and active community of developers who are constantly sharing new ideas and resources. This makes it easy for developers to find help and support when needed.

5. Reusable components: React Native allows developers to create reusable components that can be used in multiple apps, which saves time and effort when building new apps.