I would like an app built using the ionic framework, that has a front end that customers can use at specific malls to look at the current deals available at all stores at that specific mall. There will be a back end app that mall vendors can use to update their individual deals. And a third application that administers and charges mall vendors for using the back end. (The third app isn't necessary). All must have login systems that offer different options based on role (customer, vendor, administrator).