Compare software

Sensu vs Icinga 2: catalog facts
Sensu	Icinga 2
Freemium Free download, with paid plans listed on the pricing page.	Free Free and open source. Hosting, hardware and any external services are separate.
Windows, Linux, Self-hosted, Command line	Self-hosted
Monitoring defined as code and applied with sensuctl Routes check results to alerting and automation handlers	Supports distributed monitoring setups Runs service checks and notifications
Aimed at operations teams rather than single desktops Some features are part of paid plans	A complete deployment involves configuration and optional web-interface components.
Downloadable app, Self-hosted	Self-hosted
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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