Avast SecureLine VPN is a straightforward, beginner-friendly service that offers strong encryption and fast speeds but lacks the advanced features found in top-tier standalone VPNs . Regarding the specific version and "license key" in your query, users should be extremely cautious: version 5.5.522 is an older release , and "license keys" found on third-party or pirate sites often contain . Key Highlights of Avast SecureLine VPN Avast SecureLine VPN Reviews & Ratings: Is it Worth it?