Not ready yet (I hope!)

I have been singing all my life but havent had technical training, so I was looking for something that could teach me some warmups and techniques that may protect my voice and help me improve my skills. This app is NOT that.
This game is either not ready or just completely terrible altogether. The first and only exercise it offers me is called "Head Voice Tease". It requires signing 7 notes in ascending keys to the sound of a warbling synth pad - the "sample" to get you ready has clear piano backing, but once you actually start there is a ridiculous reverb that completely smothers your changing starting notes. Also, you should turn off the "listen as you sing" setting, or else you will be hearing a pulsating reverb of your own voice further muddying the sound. Then, after this game pushes you far past where your vocal range is set, it gives you an indecipherable grading page. What is the grading out of? Where did I go wrong? The only tip or suggestion given was to check my vocal range, which I did, however it still gave me notes well beyond my settings.
Why are the warm ups locked? Why does it start with "Head Voice" and not "Foundations"? Why is there no explanation for the grading? This app is a mess. It is a good idea and definitely has potential, but at this point it is only frustrating.

_Sam-R-I_ about Vanido - Your personal singing coach, v0.4.0