Abstract:<\/strong><\/p>\n In modern cities, most citizens are interested in buying from e-shops or mostly buy from large shopping brands. This is a challenge for small and medium-sized retailers, who cannot afford to maintain IT infrastructures and skills. The ongoing R&D project SMARTBUY, tries to close this gap by providing a platform for small and medium-sized retailers to become the place where they can easily make their products and promotions visible online for local audiences, along with a mobile application for customers. An important issue in this context is the evaluation of the retailers. In this work, we introduce a new evaluation application for assessing the quality of the retailer services. Customers have the chance to rate the behavior and the offers that the retailers provide to them. Smart-buying Environment using Smart City Infrastructures<\/strong><\/em><\/a> This evaluation service is based on the SMARTBUY platform and is developed upon the OrganiCity Experimentation Platform. The evaluation application is a novel approach to generate knowledge for the retailer shops inside a future city using both data from open city datasets as well as feedback from citizens. android projects ideas<\/a> Such an application is deemed useful to both customers, to identify retailers with best offers and services, and retailers as an incentive to improve their services.<\/p>\n