This local plugin introduces the application concept into Moodle. It allows users to add, edit, remove, or access external applications without leaving Moodle. For an application added to Moodle with this plugin can also be provided the information needed to automatically authenticate the user on the application when it is accessed. For this the application must support the IMS LTI standard (http://www.imsglobal.org/lti) and must allow users to be authenticated from external systems using this standard. The process to add applications to Moodle with this feature is very similar to the creation of "External Tool" activities in a course.
An example of an application that supports IMS LTI allowing users to be authenticated automatically is Epik (http://epik.di.fct.unl.pt/epik), an application to create educational games. You just need to create a new account and then you'll find the information needed, to create the application on Moodle, on your Epik user profile.
To manage applications was also created a Moodle block that provides the user a way to create new applications, view all his applications, and access his favorite applications (very similar to the courses block). This plugin can be found on the following link: https://moodle.org/plugins/view.php?plugin=block_applications_list.
I recommend you use this plugin with Cubic, a theme for Moodle that I also created (https://moodle.org/plugins/view.php?plugin=theme_cubic).