Creating a real-time voting application using C#, .NET, and the PubNub C# SDK involves leveraging technologies such as C# 9, ASP.NET 5.0, and the PubNub API to develop an interactive voting system where users can vote and view results instantly. By utilizing methods like `publish()`, `subscribe()`, and `DetailedHistory`, developers can send and receive live voting data over WebSockets, allowing for an engaging user experience. The tutorial demonstrates setting up schemas for structured data storage and explains the creation of class files using the xsd.exe tool in Visual Studio. It also highlights the convenience of incorporating real-time features in applications using PubNub, with the potential for further enhancements such as integrating Angular for the front-end, user authentication, and data encryption. Developers are encouraged to explore the PubNub platform, known for its robust real-time edge messaging network, to build scalable and high-performance web, mobile, and IoT applications.