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freeDictionaryApp vs Wordbook: catalog facts
freeDictionaryApp	Wordbook
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0-or-later licence.
Android	Linux
Definitions and example sentences for English words Wiktionary lookups from other languages into English	Works fully offline Pronunciations through eSpeak
Depends on external online dictionary APIs Wiktionary lookups are case-sensitive	English only Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
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.