Misleading & Ambiguous Functionality

Despite all the talk of audio formats and qualities, I cant record audio at anything higher than the iPhones native resolution of 1080p.

Ive got an iPhone 6, and after asking why it wasnt working they told me that they REMOVED that functionality for my iphone model - so it was in there until now, and they dont tell you they removed it on their description, AND all the previous tutorial videos and guides and of course all the user reviews dont mention it being gone, because until they removed it it was a key core piece of functionality.

Very dissappointed, and I almost never write negative reviews, but I just spent $15 on something not useful to me at all now. :(

LithLollipop about Filmic Pro－Video Camera, v5.1.1