Let's Encrypt vs Symantec Endpoint Protection: What are the differences?

Developers describe Let's Encrypt as "A free, automated, and open Certificate Authority (CA)". It is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG). On the other hand, Symantec Endpoint Protection is detailed as "A security software suite that consists of anti-malware, intrusion prevention and firewall features for server and desktop computers". It is a security software suite that consists of anti-malware, intrusion prevention and firewall features for server and desktop computers. It has the largest market-share of any product for endpoint security.

Let's Encrypt can be classified as a tool in the "Certificate Authority" category, while Symantec Endpoint Protection is grouped under "Security".