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Tūī vs Foldio: catalog facts
Tūī	Foldio
Free Free and open source under the GPL 3.0 or later.	Free Free and open source under the BSD 3-Clause licence.
Android	Android
No internet access and no tracking Shows files exactly as named, unaffected by messy tags	Folders become playlists with no library scan or tagging Shuffle across several playlists at once
No metadata means no album art or artist browsing Only plays local files	Android only Basic playback controls only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: BSD-3-Clause
No account needed	Not stated if an account is 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.