Needs work

The octaves are numbered differently than they traditionally are, and while this is fine it should be noted somewhere. Also it will not register notes below an E2. I thought at first I was struggling with the lower part of my range, but my cousin is a basso profundo, and he couldnt get anything below an F2 to register.
With that out of the way, this app is very solid and with some quick google searches to work out kinks this can make you a great singer with time.

Heist Gopher about Vanido - Your personal singing coach, v0.3.4