Trouble accessing microphone prompt – PromptSmart Pro - Teleprompter Review

I just purchased this app based on the voice activation feature. However, every time I press place to access my lyrics, I get the warning message that PromptSmart needs mic to be activated on my iPad. Mic activation doesn’t show up for this app. How can I fix this? Settings doesn’t help and the settings button on this PromptSmart app doesn’t work. Can anyone help? Otherwise I just through away $20 for a useless app.
Review by R. Mars Chance on PromptSmart Pro - Teleprompter.