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Sparrow-wifi vs Spectre: catalog facts
Sparrow-wifi	Spectre
Free Free and open source.	Free Free and open source under GPL-3.0.
Linux	Android
Wi-Fi and Bluetooth scanning in one GUI GPS and spectrum support	Monitors Bluetooth, Wi-Fi, cellular and GNSS signals Reconnaissance tools in one app
Linux only Installed from source with Python dependencies	Capabilities constrained by Android's security model Intended for authorized testing only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
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 October 2, 2026

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