Compare software

Fing vs WhoIsConnectedSniffer: catalog facts
Fing	WhoIsConnectedSniffer
Freemium A free version is available. Fing Premium is a paid subscription.	Free Freeware from NirSoft; it may not be sold or bundled with commercial products.
Windows, macOS, Linux, Android, iOS	Windows
Device identification is unusually accurate for a consumer scanner Alerts when a new device joins the network	Passive discovery that sends no packets to other devices Shows operating system, description and IPv6 address that scanners may miss
Advanced features and history require a paid subscription Closed source, and device identification relies on their cloud database	Requires the Npcap or Network Monitor capture driver Only detects devices that send packets the computer receives, and not on other subnets
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Freeware
Not stated if an account is needed	No account 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 October 8, 2026

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