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iStat Server vs Netdata: catalog facts
iStat Server	Netdata
Free Free download from Bjango; the iStat View apps that display its data are separate…	Freemium The agent is free and open source under the GPL 3.0. Netdata Cloud has a free tier and…
Windows, macOS, Linux	Windows, macOS, Linux, Web, Self-hosted
Runs on macOS, Windows, Linux, BSD and other Unix-like systems Lets you watch several machines from one iStat View app	Per-second metrics with dashboards that work the moment it is installed Auto-discovers common services and graphs them without configuration
Needs iStat View for iOS or Mac to see the data Linux and other Unix builds require compiling	The sheer number of charts is overwhelming at first Uses more memory and disk than a minimal metrics agent
Downloadable app	Self-hosted, Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 21, 2026

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