Hopping in to say that I’ve used mochi very regularly for over a year and love it. It’s definitely an aesthetic improvement over Anki. I’m kind of confused why it isn’t more popular - I remember doing a bunch of research on SR software and not finding any I liked, and then only finding Mochi by chance when the creator left an HN comment
There is no indication that Mochi is using any modern spaced repetition algorithm like FSRS. Even FSRS has huge problems but its the best one that's fully deployed and well tested and it is way better than SM-2. The future of SRS involves integration of fMRI based findings about memory formation and knowledge tracing but that is at least 5-15 years out.
This is way down the rabbit hole of unimportant tweaking. One of the most popular SRS websites for language learning, Wanikani, uses essentially the Leitner method, which is one of the oldest and has no dynamic adjustment. It works just fine and their users self-report a preference for the simple algorithm.
Any SRS is better than SRS (if an SRS is appropriate at all--it usually isn't), and the difference between algorithms is either imperceptible, or worse a UI/UX regression to most users.
> It works just fine and their users self-report a preference for the simple algorithm.
Have you asked them recently? A lot of the criticism of Wanikani, including on its own forums, is describing it as a burnout machine because of a mix of the primitive SRS system and the level lockouts. Particularly since Anki has switched to FSRS and people are comparing the relative workloads.
Be ware of availability bias. Wanikani is wildly popular, with a massive number of users. It dominates that particular space. And with a large user base, they will have a vocal minority advocating for changes. On the other hand I have met a fair number of users in the wild and not a single one has complained about this.
