App works wonderfully. The only two issues I have are that you cant use vibrato at all because the pitch tracking is so sensitive, and that sometimes the higher part of my range gets tracked as an octave higher than Im actually singing, so I lose points on those.
Other than those two things, however, I feel I can already see the beginnings of improvement in my pitch, and Ive only been using the app a couple of weeks. Just make sure you rest your voice if it gets tired!
EvanescenceFan123 about Vanido - Your personal singing coach, v0.3.4