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Sparrow-wifi vs Vistumbler: catalog facts
Sparrow-wifi	Vistumbler
Free Free and open source.	Free Free and open source under the GPLv2.
Linux	Windows
Wi-Fi and Bluetooth scanning in one GUI GPS and spectrum support	GPS logging to map where access points were found KML and GPX export plus live Google Earth tracking
Linux only Installed from source with Python dependencies	Windows only Works best when disconnected from access points while scanning
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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