Yes, both LightStep and Grafana offer a Free Trial.
LightStep is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Grafana is designed for Large Enterprises, Medium Business and Small Business.
Pricing for LightStep Starts at $2,000/Month whereas for Grafana Starts at $49/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 Grafana includes iDashboards, DataHero, Databox, Klipfolio Dashboard, Prometheus, Splunk Cloud, SensorCloud, Chartbrew, SharpDash and Quickmetrics.