Adaptive User Interface and Application Features Based On User Experience Level

The behavior of an application is modified, responsive to an experience level of a user as calculated based on information concerning the configuration of the user's computer. Information concerning the configuration of the user's computer that is indicative of the user's experience level is gleaned. An experience index for the user is calculated, based on the gleaned information, and assigned to the user. Based on the calculated experience index, the behavior of an application utilized by the user is modified. This can comprise selecting a user interface for the application based on the user's calculated experience index, and outputting the selected user interface when the user runs the application. The modifying can also comprise selecting a version and/or features of the application for the user, based on the calculated experience index.