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Ciyue vs Eudic: catalog facts
Ciyue	Eudic
Free Free and open source under the MIT licence; AI translation uses your own provider.	Freemium Free to download, with paid VIP features and AI quota available.
Windows, Linux, Android	Windows, macOS, Linux, Android, iOS, Browser extension
Opens MDX and MDD dictionary files Searches multiple dictionaries at once	Screen and selection word lookup in any Mac app Loads MDict, Lingoes and Babylon dictionaries
You supply the dictionary files yourself AI translation depends on a third-party service	Interface and content aimed at Chinese speakers learning English Some features need a paid VIP plan or AI quota
Downloadable app	Downloadable app, Browser extension
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is 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.