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Friture vs MasVisGtk: catalog facts
Friture	MasVisGtk
Free The open-source application is available without a license fee.	Free Free and open source under GPL-2.0.
Windows, macOS, Linux	Linux
Several views of the same live audio input	Analyzes loudness using EBU R128 measurements Shows waveforms and frequency plots
Live analysis requires an audio input source.	Designed for GNOME on Linux
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0
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 October 8, 2026

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