[gbear605]

There’s also Mnemosyne which is fully FOSS unlike Anki.

https://mnemosyne-proj.org/

[Jtsummers]

https://github.com/ankitects/anki/blob/main/LICENSE

I'm pretty sure Anki is FOSS, though perhaps you just don't like the AGPL?

[_fqqr]

I think they meant the other parts of the Anki ecosystem that are not FOSS, AnkiWeb and the iOS app.