NativeBase vs Xamarin: What are the differences?
Developers describe NativeBase as "Experience the awesomeness of React Native without the pain". NativeBase is a free and open source framework that enables developers to build high-quality mobile apps using React Native iOS and Android apps with a fusion of ES6. NativeBase builds a layer on top of React Native that provides you with basic set of components for mobile application development. This helps you to build world-class application experiences on native platforms. On the other hand, Xamarin is detailed as "Create iOS, Android and Mac apps in C#". Xamarin’s Mono-based products enable .NET developers to use their existing code, libraries and tools (including Visual Studio*), as well as skills in .NET and the C# programming language, to create mobile applications for the industry’s most widely-used mobile devices, including Android-based smartphones and tablets, iPhone, iPad and iPod Touch.
NativeBase and Xamarin can be primarily classified as "Cross-Platform Mobile Development" tools.
NativeBase is an open source tool with 12.1K GitHub stars and 1.44K GitHub forks. Here's a link to NativeBase's open source repository on GitHub.
According to the StackShare community, Xamarin has a broader approval, being mentioned in 74 company stacks & 65 developers stacks; compared to NativeBase, which is listed in 4 company stacks and 8 developer stacks.