Yes, both LightStep and Splunk Enterprise offer a Free Trial.
LightStep is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Splunk Enterprise is designed for Large Enterprises and Medium Business.
Pricing for LightStep Starts at $2,000/Month whereas for Splunk Enterprise Starts at $150/Month.
Some top alternatives to LightStep includes Grafana, Sentry, Honeycomb, Prometheus, Splunk Enterprise, Datadog APM, AppDynamics, Dynatrace, Splunk Cloud and Splunk App for Infrastructure.
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.