If you are doing that then you want an app that can scan apps when you install or update them rather than just manually. I'm not sure whether MalwareBytes will do that without enabling its full real-time protection. I do know that Avast! lets you scan on install only.
But remember that any security app can only detect things that are in its database. So having one of these is not a replacement for being careful about what you install, especially if you download from all over the place. Your vigilance is a better protection than any app.
But remember that any security app can only detect things that are in its database. So having one of these is not a replacement for being careful about what you install, especially if you download from all over the place. Your vigilance is a better protection than any app.