TeeChart NET for Xamarin.Android - Version 2018 TeeChart Charting Library for Xamarin.Android offers full set of 60+ Chart styles in 2D and 3D, maps and gauges, 50+ financial and statistical indicators and a full set of Chart tools components for additional functionality. The TeeChart for Xamarin.Android license provides support for Android mobile platform and includes a renewable one-year subscription service that entitles customers to free updates and technical support service.Source code is available as an option to buy.