I took advantage of the promotion (free) to install this application. Here we are offered the 3.3.3.2 version to install, while Google Play we are offered version 4.2.1 (for the Galaxy Note 4). So I think it's for her that the antivirus does not work for me !!! Do not wasted 10 euros for an antivirus that does not update! This is the basic computer: VIRUSES USED TO FAULT NOT CORRECTED IN PROGRAMMES to crack !!!