Avira Free Mac Security
Full user review
"Happy enough could be better"
Doesn't take much ram when running in the background.Ive noticed no slow down on my system with normal usage.
Takes good bit of ram on a full scan around 2.50 gbs according to activity monitor.A lot better than avast which took all 12 gigs on same full system scan
Viruses/Malware on a mac are hard to come by so of course the scan came up with nothing.I will update if i do get infected and avira misses it.