A mobile app requirements document, also known as a product requirements document (PRD), is a document that fully defines the purpose of a mobile app project. A PRD is the foundation of your product, outlining business logic, listing technical specifications, and ultimately helping your development team transform your early concept into a fully functional mobile product.
Product teams use the PRD to guide the development of the mobile app as a means of understanding what is required to build the product. A PRD clarifies all of your ideas before any development work begins.