based on https://www.bitdefender.com/solutions/antivirus-comparison.html the only difference is they support more platforms, Also the Anti-virus plus is not shown is it any different then BIS or is the firewall the only difference?
Bitdefender Total Security also supports Mac OS and Android yes. Additionally it has Antitheft modules and the rest of the "Utilities" features (OneClick Optimizer , Startup Optimizer, Disk Cleanup). Internet Security has Firewall, Antispam, Webcam Protection, File Vault and Parental Control as extras, compared to Antivirus Plus.
