Yes, Splunk enterprise is a data-centric and Security information & event management solution.
Splunk Enterprise provides organizations with the security information and event management (SIEM) for the machine data that is generated from the network, malware, endpoint, identity information, access, and vulnerability security technologies.
No, Splunk enterprise security is not free. The pricing for it depends on the volume and license period either annually or perpetually.
Splunk Enterprise helps in collecting and analyzing data from various sources such as websites, sensors, devices, and applications.
Splunk is a SIEM ( Security Information and event management) solution. The difference between the Soar and SIEM is that both source data from various sources but the quantity and location of information differ.