Nagios XI - free alternatives of AppDynamics, AppSignal, OneAPM Application Insight, Stackify

App Name	Nagios XI
Price	Freemium
Rating
Platform	WindowsmacOSLinux
Website	Visit Nagios XI website
Source code/Download	Get Nagios XI
Logo	Preview
App Preview	Preview
Introduction	Nagios XI An extensible, enterprise-level infrastructure monitoring solution with time-saving, easy-to-use features. Monitor, troubleshoot, and proactively alert on your infrastructure in a streamlined environment.
Plans	Free Plan Free Manage and monitor small-scale environments. Includes 7 Nodes or 100 Services – whichever is reached first Includes most features of the Standard license Plan 1 Standard, Enterprise & Sitewide plan.