I use avast! Mobile Security on my Chinese tablet DIGMA iDs10 and the program worked fine when it was version 2. Today I downloaded AMS v3.0.5994 and installed it as free. During the installation it asked me to install some Google services but my tablet is not compatible with Google Market. I clicked to install them but, of course, nothing was installed.
The installation of AMS continued and then I opened the main window. The first thing I saw was the big yellow button. It says: "Unknown". If my avast! is in free version, I would like to see a button (not yellow which is a sign of some security risk) that says something like "Freeware".
Then I discovered that I can't initialize the firewall. When I tried to put it on, the checkbox remained unchecked. At the same time a pop-up appeared but I can't read it, because it immediately disappeared. So the firewall isn't functioning now, though it was functioning in version 2 and my tablet is rooted.