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SoundAura vs Blankie: catalog facts
SoundAura	Blankie
Free Free and open source under the Apache 2.0 licence.	Free Free and open source with no ads or subscriptions.
Android	macOS, iOS
Plays many tracks at once with individual volume Small download since no sounds are bundled	24 built-in sounds plus your own audio files Saved presets for different mixes
No built-in sounds; you must supply your own files Android only	Apple platforms only Not a general music player
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is 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 1, 2026

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