Compare software

0x54ask vs Todosian: catalog facts
0x54ask	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
Uses the plain-text todo.txt format No Internet permission at all	Works directly on existing Markdown files No account or database import
Very new project, created in 2026 No built-in sync; relies on a separate tool such as Syncthing	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.