Unique Identifier for a Windows Phone App

Question

What is the name for the unique Identifier for a Windows Phone App?

Answer 1

The name of the GUID that identifies the app, as described by MSDN is App Id.

CurrentApp.AppId - appId property - MSDN

The data type of appID is GUID (Globally Unique IDentifier) which is a structure defined in the system namespace.

Answer 2

The Unique Identifier of your Application is the "GUID" [or product ID] (for Globally Unique IDentifier)

You can find it in your WPAppManifest.xml inside your project folder.