Installing TeeChart for Xamarin iOS Nuget PackageThe TeeChart for Xamarin.iOS uses a license file to activate the evaluation version, removing the watermark displayed on evaluation version charts.
How to add the TeeChart.licenses file to the Xamarin.iOS project for runtime licensing
The TeeChart.licenses file should be installed as an Embedded Resource in your iOS project.
// Remember to Call Init method in AppDelegate.cs file in order to Load the TeeChart custom Library Renderers. Steema.TeeChart.TChart.Init();