Samples

Tizen

Windows Forms

Various samples https://github.com/Asesjix/ReactiveUI.Winforms.Samples

Windows Presentation Framework

Ever noticed that little checkbox when installing Visual Studio to "Install GitHub for Visual Studio"? Yeah that extension is a enterprise grade application built with ReactiveUI and it's completely open-source. See https://github.com/github/VisualStudio/tree/master/src (especially the unit tests!)

Additionally you absolutely must take https://github.com/RolandPheasant/Dynamic.Trader for a test-drive. So so good.

Universal Windows Platform

Tiny app for reading RSS feeds built for Universal Windows Platform. Uses ReactiveUI modern MVVM framework and PropertyChanged.Fody for INotifyPropertyChanged injections. https://github.com/worldbeater/myFeed

Xamarin Android

Xamarin iOS

Xamarin Forms

Xamarin Mac

Send in a pull-request linking to the source code of something you have built.