Write an Android application

Hello I need website and android app for giving cashback reward offers to the customers freelancers first understand the technology of reference website [login to view URL] how they are giving cashback to the customers to encash anywhere there is no need to go back to encash that cash back to same store or same website and then apply with confidence project will get awarded to team/freelancer who will understand and give complete solution how to do cashback anywhere and everywhere as [login to view URL] doing