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KWordQuiz vs Brainscape: catalog facts
KWordQuiz	Brainscape
Free Free and open source as part of KDE Gear.	Freemium Free to start, with paid upgrades for extra features.
Windows, Linux	Android, iOS, Web
Five different quiz modes Built-in editor for creating card sets	Large catalog of ready-made decks Confidence-based spaced repetition
No macOS or mobile versions Uses KVTML rather than formats shared by other flashcard apps	Proprietary, cloud-based decks Some features sit behind a paid upgrade
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: GPL-2.0-or-later	License not stated
No account needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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