evidently it does not, somehow we have two licenses because I was prompted to buy password for for the other computer but there is no syncing of the accounts, plus if I use it on my macbook pro, 3 desktops, iphone and 3 ipads that is 8 licenses @79 each that is $632 per year, are you nuts? I don't pay that much for 5 licenses for Avast professional. plus how in the heck is that supposed to work?