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Checkmk vs Sensu: catalog facts
Checkmk	Sensu
Freemium Free open-source Raw edition, with paid Enterprise and Cloud editions.	Freemium Free download, with paid plans listed on the pricing page.
Self-hosted	Windows, Linux, Self-hosted, Command line
Auto-discovery reduces manual setup for new hosts and services Supports both agent-based and agentless SNMP monitoring	Monitoring defined as code and applied with sensuctl Routes check results to alerting and automation handlers
Advanced features and scaling are gated behind paid commercial editions Self-hosted setup and tuning takes more effort than a hosted SaaS monitor	Aimed at operations teams rather than single desktops Some features are part of paid plans
Self-hosted, Downloadable app	Downloadable app, Self-hosted
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.