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Prometheus vs Checkmk: catalog facts
Prometheus	Checkmk
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Free open-source Raw edition, with paid Enterprise and Cloud editions.
Windows, macOS, Linux, Self-hosted	Self-hosted
Label-based data model and PromQL make ad-hoc questions easy to answer Pull model needs no agent configuration beyond exposing a metrics endpoint	Auto-discovery reduces manual setup for new hosts and services Supports both agent-based and agentless SNMP monitoring
Local storage is not clustered; long retention needs Thanos, Mimir or similar Pull model does not suit short-lived jobs without a push gateway	Advanced features and scaling are gated behind paid commercial editions Self-hosted setup and tuning takes more effort than a hosted SaaS monitor
Self-hosted	Self-hosted, Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is 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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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