This is the first singing and ear training app I have ever tried; it was literally an eye opening experience, especially since I am a beginner in terms of music theory (Ive never taken voice training lessons) but I do sing. What is revolutionary about this product, and one of my favorite features, is the very visual approach to singing; you can see your voice being tracked onscreen, you can see the note bubbles you are trying to hit as you try to hit them, and while you practice you get a clear idea of where your pitch needs work! Even though Ive always considered myself a good vocalist, this app allowed me to see specific problem areas in my range that I never heard on my own. I had always wanted to know what my range is, and this app can tell you! It starts you out at a narrow range that expands as you practice, or actually sets your current range capabilities based on voice detection...all represented by a colored bubble that gives you a visual representation of your abilities. While utilizing technical music theory, this application is quite user friendly and intuitive regardless of skill level, with well defined and instructive lessons (which is great because you dont need to go to a vocal trainer, you can practice and improve while having privacy and not compromising quality...after all the app tracks your progress!). This innovative app will help people break their own sound barrier to become better singers