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Audio Spectrum Analyzer vs Friture: catalog facts
Audio Spectrum Analyzer	Friture
Free Free and open source under the Apache-2.0 licence, with no ads.	Free The open-source application is available without a license fee.
Android	Windows, macOS, Linux
Logarithmic or linear frequency axis Useful for noise measurement, instrument tuning and timing sound events	Several views of the same live audio input
Android only Measurement accuracy depends on the phone's microphone	Live analysis requires an audio input source.
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0
No account 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 October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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