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Soothing Noise Player vs Chroma Doze: catalog facts
Soothing Noise Player	Chroma Doze
Free Free and open source under GPL-3.0-only.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Mix 15 noises at individual volumes Import custom sounds and save profiles	Draw any noise spectrum by hand Fast feedback while adjusting
Small single-purpose app Limited default sound library	Android only Infrequent updates
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-only
No account needed	No account needed
Works offline	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.