Great app for my daily practice but...

One thing that will be my five star is that I need the app be able to keep running when my Iphone screen is off, because I need warm up during a walking or keeping the Iphone over a table etc. But just because it works only with the screen on, my battery over too fast and the display timer off automatically turn off the app. Can you fix it on a newer update?

Von brixen about Voice Coach, v2.0