What is the difference between Static class and Singleton instance in C#?

Static

• Static is a keyword
• Static classes can contain only static members
• Static objects are stored in stack.
• Static cannot implement interfaces, inherit from other classes

Singleton

• Singleton is a design pattern
• Singleton is an object creational pattern with one instance of the class
• Singleton can implement interfaces, inherit from other classes and it aligns with the OOPS concepts
• Singleton object can be passed as a reference
• Singleton supports object disposal
• Singleton object is stored on heap
• Singleton objects can be cloned
• Singleton objects are stored in Heap