It has already been stated by one of the avast team that the google-analytics functionality is used to see how the user interface is used, e.g. what areas are most used, etc. how the user moves through the interface.

This helps to see any areas that can be improved to make the user interface making it more ergonomic/user friendly in future UI updates…

Now this isn’t word for word what was said but from my memory of what was said in another topic, I think it is google-analytics which is the function used to do this UI analysis.