https://www.nuget.org/packages/WinRTXamlToolkit.Controls.DataVisualization.WindowsPhone/
NuGet Gallery | WinRTXamlToolkit.Controls.DataVisualization.WindowsPhone 1.8.1
Charting Controls for Windows Phone 8.1, ported from the Silverlight Toolkit.
nuget gallerycontrolsdatavisualizationwindowsphone