When I have created a free account to try the app (Android phone), the feature of scrolling the lyrics back and forth during the recording worked well. Then I decided the app is good for me and paid for subscription. Suddenly, the scrolling feature disappears, and now I must wait the entire intro before each new attempt, not to speak of fixing any small mistake during the song. This is not technical unavailability, this is plain cheating! 😠😠😠