The present disclosure provides a system for tracking and recording movements of a communication device. The mobile communication device is operable to communicate one or more sensor signals to the system, wherein the sensor signals are indicative of motion associated with activities to which the user exposes the mobile communication device. The system includes a computing hardware that analysis sensor signals to classify them into one or more temporal zones, determines a most likely activity type associated with a given temporal zone, and sends the information regarding most likely activity to the mobile communication device. The user of the mobile communication device provides their confirmation whether the most likely activity type represents a correct analysis, and communicate the confirmation back to the computing hardware for amending parameters and/or algorithms which execute analysis of the sensor signals to improve their accuracy.