Application Services refer to software applications that provide specific functionality or services to users, typically through a graphical user interface (GUI). These types of services are designed to perform tasks and operations for end-users in an easy-to-use manner. Examples include office suites, media players, web browsers, and social networking apps, among others. Application Services can be accessed via the internet or installed on a device, such as a computer or mobile phone, and often require user authentication to access certain features.