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Mnemosyne vs Oboete: catalog facts
Mnemosyne	Oboete
Free Free and open source.	Free Free and open source under the GPL-3.0-only licence.
Windows, macOS, Linux	Linux
Spaced-repetition scheduling that focuses on cards you forget Uncluttered interface for newcomers	Native app for the COSMIC desktop Imports Anki decks
Smaller community and fewer shared decks than Anki Plain, older-style interface	Linux only and designed around COSMIC Fewer study features than Anki
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-only
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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