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Runestone vs 1Writer: catalog facts
Runestone	1Writer
Freemium Free to edit files; Premium settings are a one-time $9.99 purchase, varying by country.	Paid A paid app on the App Store.
iOS	iOS
Syntax highlighting and line numbers on iPhone and iPad Runs on Apple Vision Pro as well	Works on plain text and Markdown files you own Dropbox, WebDAV and iCloud Drive sync
Apple devices only Some settings require the Premium purchase	iOS and iPadOS only No Android or desktop version of its own
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
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 October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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