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Flash Deck vs Really Basic Vocab: catalog facts
Flash Deck	Really Basic Vocab
Free Free and open source under the GPL 3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Quick card entry with Save and Add Another Reversible cards for testing both directions	Clear filing box, deck and card structure Export and import of filing boxes as backups
Android only Simpler than full spaced-repetition apps such as Anki	Android only Deliberately basic feature set
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0
Not stated if an account is 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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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