build me an android app for vocal training

I need an app for vocal training, it should gave input vocal from the phone's microphone and detect the pitch and then compare that vocal pitches with the original melody of the song and give user rate, and of course, it should have levels and lessons, etc. the whole app system should be like vocaberry app and app performing lesson part should be like yousicain app links: [login to view URL] [login to view URL]