Avira also has an auto update mode to keep the system update against all the latest viruses. It is easy to use, user-friendly interface, a navigational bar for viewing the status of your system, scheduling tasks system, and also has an option of viewing past quarantine history. It is the only Mac antivirus which detects all the malware and provides 100% result. Avira Antivirus is one of the best antiviruses amongst all the free antivirus software for Mac.