Why do you have to play for more time?

I really like this app, but I have one complaint. I do not like how you have to pay just to be able to have more time when recording/making the song that you are wanting to do. I dont know any song that I like that is under one minute most song that you like to sing are three to five minutes long, and I dont want to pay for that.

DomWH21 about Acapella from PicPlayPost, v2.5