And a lot of others are missing… Tons of others…
Avast free is the major competitor of Avast Pro in my opinion 8)
Too good to be truth 
Anyway, it’s your right, like any user, to ask for one more (or new) feature 
Look into avast Log viwer to see the ‘errors’.
Look at the *.txt files into the \report folder to find the ‘scan results’.