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Chroma Doze vs Metiq: catalog facts
Chroma Doze	Metiq
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL.
Android	Android
Draw any noise spectrum by hand Fast feedback while adjusting	Several noise colors plus binaural beats and ambient sounds Very simple tap-and-listen interface
Android only Infrequent updates	Android only No releases published on GitHub; install through F-Droid
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-or-later
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 2, 2026	Official website Full listing and sources Checked October 2, 2026

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