I am looking for someone to produce an iOS and Android based app that provides functionality very similar to www.Gumtree.com or www.Kijiji.com It will be a narrow category with at most 20 different categories, but filter and data entry needs to be 15+ options on each listing. This will also require detailed location filtering, but will only be in Canada and USA.
-Administrator function to update categories, delete listings, manage users
-Seller function to input listing with multiple categories
-Buyer function to search listings, browse general categories and filter all data (including local area)
-listings to expire after 90 days
-ability for sellers to purchase 'top ad' space and to pay to renew ad
-must allow for advertising ability through third party advertisers (banners, headers, footers)