LearnENT, an educational app for iOS, was developed to promote a standardized experience otolaryngology in head and neck surgery (OTOHNS) for University of Ottawa medical students. Its development was grounded in pedagogical theory including Laurillard's design process, Honey and Mumford's learning styles, and Nielsen's theory of usability. This paper examines LearnENT's design and development processes as well as the role of mobile apps in medical education. Features of the LearnENT app as they apply to Constructivist learning are also highlighted.