Avira Free Antivirus 4.0.3.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The software lies within Security Tools, more precisely Mac protection. This free Mac app is an intellectual property of Avira.
From the developer:
Avira products are comprehensive and flexible tools you can rely on to protect your Mac from viruses, malware, unwanted applications and other dangers. Loss of valuable data usually has dramatic consequences. Even the best virus protection program cannot provide one hundred percent protection from data loss. Perform regular backups of your data for security purposes by setting up your Mac Time Machine.
You may want to check out more software for Mac, such as Avira Phantom VPN, Avira Optimizer or Avira Secure Backup, which might be similar to Avira Free Antivirus.
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Antivirus