No audio for iphone4 when making a video

I was really excited when I was able to upgrade to the full version but was quickly disappointed when the app lacked audio when making a video. Had I known that I would have stuck with the free version....kinda pointless to have video with no audio. Also, was told there would be no ads, but I get a pop up that features their other products and personally I consider that an ad.

Lilwoo77 about Fat and Skinny Booth - With Split Screen Camera and Picture