Kamon Telemetry is battle-tested, free and open-source instrumentation library that is very simple to start using, requires almost no coding and can be set-up in a matter of minutes.
Developers can send Kamon Telemetry data to the visualization/dashboarding tool of their choice, one of which is compatible Kamon APM.
Kamon APM’s major benefit is it comes with a built-in dashboard for the most important metrics to monitor, taking the pain of figuring out what to monitor and building your own dashboards for weeks out of the monitoring.