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Notenik vs Octarine: catalog facts
Notenik	Octarine
Free Free with no in-app purchases, subscriptions or ads; source code under the MIT license.	Freemium Free to download, with paid features offered; see the site for details.
macOS	macOS
Notes stored as plain text files you can open anywhere Wiki-style links between notes	Notes kept as local Markdown files Core features built in without plugins
Mac only Sync depends on a third-party service you set up yourself	Download offered for macOS only Opinionated design with fewer configuration options
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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