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React Native provides ready-made components which can be used throughout the web apps, iOS, Windows OS, Android, etc. Flutter harbors a flexible, quick-rendering UI with its own design, including interactive widgets, platform, as well as visual designs. Flutter uses the programming language Dart, which is almost exclusive to Google, but it means a steeper learning curve for anyone outside of Google. React Native is upvoted by 42% of developers and Flutter, by 39%, explaining a clear preference for React Native.