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Dia vs Ortix: catalog facts
Dia	Ortix
Freemium A free tier is available. Heavier use requires a paid plan.	Freemium Free download for Mac; Ortix Pro is available through a Setapp subscription.
macOS	macOS
Assistant reads your open tabs, so questions do not need copy and paste	On-device AI agent with no cloud use by default Native WebKit app with Spaces and split screen
macOS only and requires an account The assistant sends page content to a remote service, which has privacy implications	macOS only Pro features require Setapp
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Account 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 October 2, 2026

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