Avast Free Antivirus vs Comodo Internet Security

Avast Free Antivirus provides antivirus protection and is now part of the Avast One app. Its free protection detects, blocks, and removes malware, including viruses, adware, spyware, and Trojans, with real-time detection and PC scanning. Web Guard helps block scam websites, phishing links in email, and malicious downloads. On PC, File Shield scans files as they are added or opened, while Behavior Shield warns about suspicious app behavior. Mail Shield flags potentially malicious email attachments, and Ransomware Shield helps stop untrusted applications from changing or encrypting personal files. Network Inspector helps protect Wi-Fi networks from intruders; Firewall monitors traffic to help block malicious intrusions. Hack Alerts notify users if Avast detects that email passwords appeared in a leak or hack, while Avast Assistant offers guidance on whether online messages or offers may be scams. The free plan costs nothing for 1 device. Avast specifies Windows 7 or later and macOS 10.14 or later; automatic updates require internet access. Protection can continue indefinitely after activation, though the app may prompt for reactivation after 12 months.

Comodo Internet Security is a Windows security suite that combines antivirus protection, a packet-filtering firewall, host intrusion prevention, and automatic isolation for unknown files. Its Auto Sandbox runs unfamiliar files in a separate environment. The firewall can block unauthorized inbound and outbound connections, manage which programs can access the internet, and hide computer ports. Secure Shopping isolates browser sessions and includes keylogger prevention, screen-capture blocking, and SSL certificate inspection; it can also run applications such as email clients, password managers, spreadsheets, and VPN clients in that environment. The product describes cloud antivirus scanning, behavior analysis, and whitelisting, alongside malicious-website filtering with custom block lists. Comodo lists a free plan and paid plans from $29.99/yr. Its guide lists Windows 10, 8, and 7, and says versions 12.0.0.6882 and later do not support Windows XP or Vista. Support resources include Comodo Support, an online help guide, and a user forum.