Pages, Apps, and Web Parts
Pages, apps (also called add-ins), and web parts are used to organize and present information and to introduce business functionality into SharePoint sites. Pages are used to create organized views of information. The information provided in SharePoint pages can be text, images, and videos organized to support information access and management needs. Pages can also be used to hold apps, which can display data such as views of list and library content or introduce other business solution capabilities.