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Brainscape vs Flash Deck: catalog facts
Brainscape	Flash Deck
Freemium Free to start, with paid upgrades for extra features.	Free Free and open source under the GPL 3.0 licence.
Android, iOS, Web	Android
Large catalog of ready-made decks Confidence-based spaced repetition	Quick card entry with Save and Add Another Reversible cards for testing both directions
Proprietary, cloud-based decks Some features sit behind a paid upgrade	Android only Simpler than full spaced-repetition apps such as Anki
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-only
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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