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NetSpot vs Vistumbler: catalog facts
NetSpot	Vistumbler
Freemium A limited free version is available. Pro and Enterprise editions are paid.	Free Free and open source under the GPLv2.
Windows, macOS	Windows
Heat maps over a real floor plan, not just a list of signal strengths Discover mode is useful even without running a full survey	GPS logging to map where access points were found KML and GPX export plus live Google Earth tracking
The free version limits zones, snapshots and visualisation types Windows and macOS only, closed source	Windows only Works best when disconnected from access points while scanning
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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