Code BD - A Map based GPS enabled Mobile App for serving information

1) This is an app to be supported in both iOS and Android. 2) App to have Vendor quick signup screen 3) Customer sees the home page screen, enters 2 or 3 fields and reaches the a map. 4) Map shows all the vendors in the area. 5) App to ask GPS to be enabled and GPS has to be enabled to use this app. 6) While the customer sees the map, he can contact any of the nearby vendors. 7) Also, as soon as the customer opens the map, for this need - automatically an SMS is sent to all nearby vendors and they will contact to his mobile phone. Hope this explains. Please let me know your quote.