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Record Apps vs Piezo: catalog facts
Record Apps	Piezo
Free Free and open source under the MIT licence.	Paid Paid app with a free download to try it before buying.
Linux	macOS
Records a single application's audio Can pick a specific output of an application	Records audio from almost any Mac application or input device Saves call participants to separate channels
Linux only and requires PipeWire Small project with a basic feature set	macOS only Paid after the trial
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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