PageTurn Universal is a free iPhone application developed by Stephen Coyle. It falls under the category of Business & Productivity, specifically designed for musicians and professionals who work with PDF documents.

This innovative app allows users to turn the pages of PDF documents hands-free, using facial gestures. By simply nodding or shaking their head, users can navigate through their documents without the need to touch their device. This feature is particularly useful for musicians who need to turn pages while playing an instrument, as it allows them to keep their hands free.

Additionally, PageTurn Universal offers annotation capabilities using an Apple Pencil. This makes it an excellent tool for musicians who want to make notes and highlights on their sheet music. Whether it's marking important sections or adding personalized notes, this app simplifies the process of annotating PDF documents.

With its intuitive interface and seamless functionality, PageTurn Universal is a valuable tool for musicians and professionals who rely on PDF documents. It enhances productivity and convenience by providing a hands-free page turning experience and efficient annotation capabilities.