You can download Xamarin.iOS 1.10.47 from our software library for free. This PC program can be installed on 32-bit versions of Windows XP/Vista/7/8/10. The most popular versions of the Xamarin.iOS are 1.8, 1.4 and 1.3. Xamarin.iOS is included in Development Tools. This free software was originally created by Xamarin.
From the developer:
Xamarin.iOS helps creating iPhone and iPad applications. You may use your favorite .NET libraries in Xamarin.iOS applications. You can reuse up to 90% of your existing C# code when porting from iOS to Android. In addition, you can easily bind third-party native libraries and frameworks.
You may want to check out more software, such as Xamarin Remoted iOS Simulator, Xamarin for Windows or Xamarin Studio, which might be similar to Xamarin.iOS.