We developed a commission-based middleware web service with iOS and Android client Apps. It’s a deal-of-the-day recommendation service for consumers.
There are three roles in this product: consumer, shop owner, admin. The service allows consumers to find sale campaigns (discounts, coupons, gifts, etc) near the POI through app on your smartphone. Shop owners can post the sale campaign details on special website. The Admin part has some tools for managing lists of users, viewing the list of debtors, etc.