Feature Request: Achievement System

I’m looking forward to an achievement system—for example, statistics on the total number of times a card has been swiped, the number of “matured” cards, total study time, the number of articles studied, and the number of characters read. I feel like there’s a lot of potential here.

Since learning is a long-term, ongoing process, I think these small statistics can inspire a sense of accomplishment and keep everyone motivated to keep going.