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Quest Log vs Todosian: catalog facts
Quest Log	Todosian
Free Free and open source under the GPL 3.0 or later licence.	Free Free and open source under the Apache-2.0 licence.
Android	Android
Tasks stored as plain Markdown files Works offline with no account or telemetry	Works directly on existing Markdown files No account or database import
Android only Young project created in 2026	No built-in sync, so a separate sync tool is needed Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: Apache-2.0
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.