Yes, both Splunk Enterprise and InsightOps offer a Free Trial.
Splunk Enterprise is designed for Large Enterprises and Medium Business.
InsightOps is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Splunk Enterprise Starts at $150/Month whereas for InsightOps Starts at $48/Month.
Some top alternatives to Splunk Enterprise includes Reveal, Sprinkle Data, Data Monkey, Knarr, Iteratively, Splunk Cloud, Easy Insight, dataSights, Squirro Service Insights and Data Suisse.
Some top alternatives to InsightOps includes LogPoint, Log Owl, Sumo Logic, Splunk App for Infrastructure, Netsurion EventTracker, EventSentry, InsightIDR, Logi Analytics and Anlyz SIEM.