We've long been fans of avast! around here. From the antivirus functionality itself to the brilliant anti-theft features with root support, it's one of the absolute best security apps on the Store today – and it keeps getting better. Take the most recent update, for example.
At this point, avast! is already working with a great app, so the most recent additions have been about streamlining. Simplifying. Taking the good and making it great. In the latest release, the company simplified the setup process for the anti-theft service, along with adding a new interface for that part of the app.