The goal of the product is to give practice and help build automaticity in topics you already know, which makes learning harder stuff (e.g. through Math Academy) easier later to raise your ceiling.
So, I'm not sure if maybe you're less familiar with the material (below the threshold) and you should take a course focused on teaching the material OR that the material in Mathy is too hard for the selected topic. Because if you're familiar, it should be helping you rather than frustrating you.
It's an offline app so I don't capture that kind of data. But you make a good point, and at a minimum for each topic I can have it start with easier problems then increasingly get harder as you do better.
I'll think more about that today and maybe get a fix out once I have some time.
Thanks again for the feedback!