# Xamarin | ![img \|150](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Xamarin-logo.svg/320px-Xamarin-logo.svg.png) | **Xamarin** is a Microsoft-owned San Francisco-based software company founded in May 2011 by the engineers that created Mono, Xamarin.Android and Xamarin.iOS, which are cross-platform implementations of the Common Language Infrastructure (CLI) and Common Language Specifications. | |-|-| | | wikipedia:: [Xamarin](https://en.wikipedia.org/wiki/Xamarin) | - [Xamarin | Open-source mobile app platform for .NET](https://dotnet.microsoft.com/en-us/apps/xamarin?cmdf=xamarin) - Cross-platform mobile apps [[Mobile app development]]