Compare software

Whosthere vs arp-scan: catalog facts
Whosthere	arp-scan
Free Free and open source under the Apache 2.0 licence.	Free Free to download and use, with the source published on GitHub.
Windows, Command line	Linux, Command line
Interactive terminal UI for browsing discovered devices Discovery runs without elevated privileges	Finds devices that do not answer ping Shows MAC address vendors
Limited to the local network Terminal-only, with no graphical interface	Works only on the local network segment Command line only, usually needs root
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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