Xamarin is a Microsoft-owned software company founded in May 2011 by the engineers that created Mono, Mono for Android and MonoTouch that are cross-platform implementations of the Common Language Infrastructure (CLI) and Common Language Specifications (often called Microsoft .NET).
Xamarin is used for cross-platform developing of Android, iOS and Windows apps with a native look and feel with a shared C# codebase.
- Shared code reduces developing time
- Access devices APIs
- Native look and feel
- C# and .NET features