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iA Writer vs Ulysses: catalog facts
iA Writer	Ulysses
Paid A paid purchase or subscription is required, depending on platform.	Paid Paid app with a free trial on all devices.
Windows, macOS, Android, iOS	macOS, iOS
Syntax control highlights adjectives, conjunctions and filler words Plain Markdown files in your own folders, with no proprietary library	Distraction-free editor for long-form writing Library for organizing large writing projects
Paid on every platform, with separate purchases in places Deliberately few features; it is not an organiser or notebook	Apple platforms only Paid after the trial
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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