Develop a app wix or HTML code -- 2

I need a professional to develop an app for a wix site. You can check out more info here: [login to view URL] The wix Platform provides some APP through the app market , but currently has no available what i need for my site. The site is not on-line yet, so it is impossible to show you the site. It may be an app or HTML format, if possible. I do not understand much about these matters . I need to add to my wix site a Business Directory app. It is for organizations (my clients) to display a directory of all the businesses. Users can view business details and filter by category. I want with a password-protected area that allows Admins to add and manage businesses. Public can search business listings based on name, category, or location. Options could include allowing each business to update their own profile. Something like this examples, but adapting it to a wix site: [login to view URL] [login to view URL] Please make sure that the design is not forgotten! Any question you have, I am available to clarify .