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Trayzero vs Mindwtr: catalog facts
Trayzero	Mindwtr
Free Free and open source under the GPL 3.0.	Free Free and open source under the AGPL-3.0 licence.
Android	Windows, Linux, Android, iOS
Designed around the GTD workflow Capture button on every screen and capture from the share menu	Full GTD workflow including weekly review and Waiting For lists Works offline with no account
Android only No mention of sync between devices	Built around GTD, which may feel heavy for simple lists Sync across devices requires setting it up yourself
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: AGPL-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 1, 2026

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