Syncfusion offers a comprehensive suite of ASP.NET Web Forms components for enterprise web development. It includes several complex widgets like DataGrid, Chart, Gantt, Diagram, Spreadsheet, Schedule, Pivot Grid and much more.
Key features -
Xcode is free to use. Upoading to the app store, and joining Apple's developer program costs $99 or $299 per year approximately.
Integrated Development Environment Software Xcode