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arp-scan vs Fing: catalog facts
arp-scan	Fing
Free Free to download and use, with the source published on GitHub.	Freemium A free version is available. Fing Premium is a paid subscription.
Linux, Command line	Windows, macOS, Linux, Android, iOS
Finds devices that do not answer ping Shows MAC address vendors	Device identification is unusually accurate for a consumer scanner Alerts when a new device joins the network
Works only on the local network segment Command line only, usually needs root	Advanced features and history require a paid subscription Closed source, and device identification relies on their cloud database
Downloadable app	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.