Newegg offers downloads of the Webroot SecureAnywhere AntiVirus 2015 1-Device 1-Year License for Windows and Mac, model no. 25119, for $5.99. Coupon code "EMCATAN67" cuts it to $3.99. That's the lowest price we could find by $31. Features include a cloud based network which analyzes files, phishing sites, malicious web pages, IP addresses, and mobile apps.