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Friture vs Blue Cat's FreqAnalyst: catalog facts
Friture	Blue Cat's FreqAnalyst
Free The open-source application is available without a license fee.	Free Available without a software purchase.
Windows, macOS, Linux	Windows, macOS
Several views of the same live audio input	Provides real-time spectrum analysis Supports common desktop plug-in formats
Live analysis requires an audio input source.	Requires a compatible audio plug-in host.
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is 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 September 22, 2026

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