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