The best app available for “learning to sing”, the vocal coach singing app features vocal warm-up exercises and exercises that Annabel has tried and tested for many years. Another of the most exclusive and best singing applications out there is Swiftscales. VoCo is a powerful tool that can be used in conjunction with conventional singing programs or with your vocal training classes. It is a pioneer in simulating a piano with a vocal trainer by your side, so much so that its interface has a piano, complete with 88 keys.
It is a practical application not only for singers, but also for vocal trainers themselves to train and warm up their students by creating personalized exercises. It simulates sitting at the piano with a vocal trainer and it moves with your tone and tempo, becoming as high or low and as fast or slow as needed. It's based on everything I've learned over the past 20 years as a celebrity vocal coach and as a session singer in the industry. The app comes with vocal exercises from basic to advanced, and a vocal range tester to help you analyze your tones.