When an App is being devised, the developer will pick categories and add tags that are most relevant to the App's content and purpose. The chosen category will then be used to group similar, related, and recommended App suggestions for users.
The categorization recommendations provided to App developers are as follows: Medical: Apps that are focused on drug and clinical references, calculators, medical journals and news, medical education, information management, or health reference for patients or healthcare professionals.
Health & Fitness: Apps that are focused on personal fitness, workout tracking, diet and nutritional tips, health & safety, healthy living, stress management, fitness, and recreational activities. Therefore, the classification of a mobile App doesn't mean that the information housed within it is necessarily any more or less reputable, but it is a chosen category assigned by the developer reflecting the App content.