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Wokabulary vs Parley: catalog facts
Wokabulary	Parley
Freemium Free to download for iPhone, iPad, and Mac.	Free Free and open source as part of the KDE applications.
macOS, iOS	Windows, Linux
Spaced repetition and multiple quiz modes Supports multiple languages and alphabets	Spaced repetition scheduling for reviews Several training modes, including multiple choice and written answers
Available for iPhone, iPad, Mac, and Apple Watch.	No mobile apps Desktop interface feels dated next to app-based trainers
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-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 8, 2026	Official website Full listing and sources Checked September 24, 2026

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