This is a feature request. I would like to be able to change the spaced repetition algorithm. While helpful, my impression is that the current algorithm is not as effective as ANKI’s (for example). When I don’t know a flashcard, even the hard button schedules too far in the future. If I don’t know it, I should have to repeat it very soon, not many days later.
If we’re able to choose from different algorithms I think this problem would be solved. Maybe even enable people to create new algorithms ad add-ons.