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Eudic vs Wordbook: catalog facts
Eudic	Wordbook
Freemium Free to download, with paid VIP features and AI quota available.	Free Free and open source under the GPL-3.0-or-later licence.
Windows, macOS, Linux, Android, iOS, Browser extension	Linux
Screen and selection word lookup in any Mac app Loads MDict, Lingoes and Babylon dictionaries	Works fully offline Pronunciations through eSpeak
Interface and content aimed at Chinese speakers learning English Some features need a paid VIP plan or AI quota	English only Linux only
Downloadable app, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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