As an avid Duolingo user and addicted data junkie, I really love tracking my progress over time to the point I even keep a personal Google Sheet based on the weekly email reports I get at the weekend.
Whilst it’s great to see how much time I’m spending on number of lessons, what I do find frustrating is the lack of accuracy to show personal progress.
It was enlightening to see the number of mistakes in the 2024 Review but I’d love to see these on a more regular basis.