As a sole app or as companion to your vocal coach, this app will not disappoint you. The pitch detection is top notch, and the exercises are well explained. The first time you notice a sensation of "singing as you dont have a throat at all", singing so relaxed yet so controlled, is when you notice that youre really improving, and the app is clearly doing something good. Bucks well invested here.
Gabriel Lazcano about Erol Singer's Studio