Audio Recording for iPhone 6s Plus doesnt Work!

I bought this app for my school project and I liked the results of my video, but the only thing that killed it was the audio recording. The app does record the audio but then it sounds all messed up once you download the video in your camera roll. They should fix that problem and I think the app would be great :)

Benny Camacho about Veescope Green Screen Full, v6.1.2