i wanna make an application for both ios and android , and the application is basically being a third party in a business, having 2 different accounts to register in the app. one is a supplier and the other is a buyer ..
and basically whenever a buy makes an order , one of the suppliers should accept it.
and here comes our job , to pick up the item from the supplier , put our own logo and packaging and deliver it to the buyer within couple hours
wanted to know how much will that cost and how long will that take