We're two engineers with an idea but without skills to develop it. We need to develop an app for iOS and Android and a website (you're free to choose languages and platform).
I don't want give you all details about project, ATM, so I'll give you an overview to develop the basic idea.
For any question please contact me.
The platform consist of two-side interface:
1. User interface
2. "Supplier" interface
The first one, user interface, shows all the suppliers' offers near user's position.
The user can view each offer and choose his favorite one. Finally he can buy and pay it.
The second one, supplier interface, allow the supplier to insert his offers specifying some details and duration of the offer. Of course you have to implement payment system.
Price: lesser you can :)