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WatchYourLAN vs Fing: catalog facts
WatchYourLAN	Fing
Free Free to run yourself, with the source published on GitHub.	Freemium A free version is available. Fing Premium is a paid subscription.
Linux, Self-hosted	Windows, macOS, Linux, Android, iOS
Notifications when an unknown device joins the network Online and offline history for each host	Device identification is unusually accurate for a consumer scanner Alerts when a new device joins the network
Covers the local network only Needs a machine that stays on to keep watching	Advanced features and history require a paid subscription Closed source, and device identification relies on their cloud database
Self-hosted	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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