An interactive system (1) for interacting with a user is disclosed. The interactive system (1) includes at least one interface (3), a measuring device (5), and a processing unit (7) comprising an interpretation module for receiving a physiological parameter obtained by the measuring device (5) and for defining, based on the physiological parameter, a datum representative of the physiological state of the user (U). The processing unit (7) comprises a data communication module for communicating data with a server (11) storing a library of applications, a data processing module for selecting an application on the basis of the datum representative of the physiological state, an information module for notifying the user (U) of the selected application, and detecting a validation action from the user (U) validating the notified application, and a download module for downloading the validated application.