Compare software

Ulysses vs ThiefMD: catalog facts
Ulysses	ThiefMD
Paid Paid app with a free trial on all devices.	Free Free and open source under the GPL-3.0 or later licence.
macOS, iOS	Linux
Distraction-free editor for long-form writing Library for organizing large writing projects	Library is plain files on your own file system Export to PDF, ePub, docx and blog platforms via Pandoc
Apple platforms only Paid after the trial	Linux only Developers note it comes with no guarantees against lost files
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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