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Lex vs Sudowrite: catalog facts
Lex	Sudowrite
Freemium You can start writing without paying; paid plan details are not shown on the homepage.	Freemium Can be tried for free, with paid plans listed on the pricing page.
Web	Web
Clean, distraction-free writing interface AI feedback, rewriting and title suggestions in the editor	Tools built specifically for fiction, such as Describe and brainstorming Uses Muse, a model trained for fiction writing
Web only, with no desktop app mentioned Track changes is not available yet	Web only, with no offline use indicated Requires an account to use
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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