There have been previous instances of Android viruses. One of them was connected to an app that was not on some weird ass site but in the official Google Marketplace. They (Google) subsequently deleted it from users tablets/phones as well as take it out of the Market.
I did a considerable amount of researching and reading tech sites reviews on various antivirus apps both paid and free. They did challenge tests on each and compared their various features.
The general consensus was that buying a paid version doesn’t give you any more protection than the best of the free ones.
I settled on Lookout for my Android tablet. It’s free and available in the Google Marketplace (now known as Play)
It scans each and every app and download as well as each update. In addition to the real time feedback on each, there’s also a weekly report sent to my email.
I figure it didn’t cost me anything and it works automatically so there’s really no reason not to have it.
Obviously Android viruses are not frequent nor plentiful and so far there haven’t been any problems but it’s nice to know it’s there just in case.
They do have a paid version but the additional features that come with that don’t add anything in terms of virus protection but are focused upon features useful if the device is stolen such as remote data wiping, gps tracking, etc.
Since my tablet basically never leaves the house, it was pointless for me. But I’m sure it appeals to people with Android phones which are more vulnerable to theft.
And on the other side of the fence, there are others who feel that antivirus apps are totally unnecessary since Android viruses are so unusual and unlikely (compared to a Windows PC) that it’s a waste to bother with any antivirus apps.
But if it’s free, I’m on the “better safe than sorry” side of the issue. There may yet come a day when it catches something, saving me much aggravation and anxiety.