I’ve used Anki pretty consistently throughout my university studies for just about every course. I plan to continue using it to keep a high level overview of some of the important maths concepts I want to stay fresh on.
I’ve been enjoying Mochi[0] as an alternative recently. It has a much nicer UI and the core features I use are all there. I find it much faster to create my cards in Markdown and with a keyboard driven workflow than what I had with Anki.