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PRTG Network Monitor vs Pandora FMS: catalog facts
PRTG Network Monitor	Pandora FMS
Freemium Free for up to one hundred sensors. Larger deployments require a paid licence.	Freemium An open-source edition is available; commercial on-premise and SaaS licences are sold…
Windows, Web, Self-hosted	Web, Self-hosted
One hundred sensors free forever, which covers a small network Autodiscovery, maps and alerting configured through one interface	Covers servers, networks, applications, logs and user experience Dashboards, reports and alerts built in
Licensing is per sensor and gets expensive quickly Windows server only, closed source	Aimed at organisations, so setup is more involved than a desktop monitor Many features and add-ons belong to the commercial editions
Self-hosted	Self-hosted, Hosted service
Closed source	Open source
License not stated	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 24, 2026

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