it’s ok
i wish there was a practice mode, as i dont know a lot of these yet. when I guess on one that i dont know, it will highlight the answer for one second, and then quickly move on. there isn’t any time for me to learn it. maybe a “next” button would solve this problem, or a flashcards feature instead of only a quiz mode.
the pictures are weird at times & hard to read. they seemed to be stretched to fit the button size, which warps some of the shapes.
overall it’s an alright app, but definitely can stand some improvements. i do appreciate the creator though, as having a trig learning app is rare right now!