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Network Scanner vs DeviceShelf: catalog facts
Network Scanner	DeviceShelf
Free Free and open source under the GPL-3.0 licence.	Paid One payment of 59 euros after a 7-day free trial, no subscription.
Android	Windows, macOS, Linux, Android, iOS, Self-hosted
Shows IP, hostname, open ports and device type No root required	One-time payment covers desktop, mobile and server editions No account and no telemetry
Android only Scans only the local network the phone is on	Paid after the 7-day trial Closed source
Downloadable app	Downloadable app, Self-hosted
Open source	Closed source
License: GPL-3.0-only	License not stated
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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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