Mobile App for products and service with multi Categories

I am looking to create a Multi catagories/ Sub catagories mobile application for iPhone/iPad, That display our products and services with mylti catagories and multi sub catagories, with prices, and booking service. The customer can select the Service A for example, then this category has up to 4 sub categories, and inside these sub categories there are also other subcategories, so in total they might be 4 to 6 levels, It has thump photos, then the display photo in the description. Once the customer placed and order then he can continue to add other items too. with the reporting function for sales and ordering. It will work like Showcase Sales App