Typically, mobile apps are available on multiple platforms. This notion is represented in the system via App Variants. The Application entry in the Push Notifications landing page grid represents the conceptual app. The actual app instance on a particular platform is represented via an App Variant. Upon creating a new app, the associated variant is also created. Other variants can be added via the Add Variant action from the Actions menu for a particular application.
The configured variants for an app can be viewed via the expand pane icon, located to the left of the app name.