Having the 1 year plan follow the trial automatically without confirmation is unethical. You KNOW you’re making bank of people forgetting about it. The functions are alright, but for an "Ai voice coach" you expect it to be able to tell me what I should train specifically, but even things like being too quiet I had to figure out myself. It can’t even properly distinguish between the pitch of my voice and background noises, giving me a 150 htz on average, while with all other apps I’ve tried, it’s 80-90. Also, the most useful exercise I found is the straw exercise, and this isn’t covered here.
Other than that, it has a wide variety of exercises and I still found the rating useful, though only coupled with trial and error to narrow it down