The current state of technological progress offers extensive opportunities for the development of urban infrastructure and the construction of Smart Cities, but the city will only become intelligent if it raises the living standards of all citizens in it. The Smart City uses information and communication technologies to improve its functionality and long-term sustainability and to increase the living standards of its citizens. In this context, it is necessary to address the issue of mutual communication between the city and the citizen and its implementation. The aim of the paper is to design a suitable smart solution that would streamline two-way communication between the city and its citizens. This solution is an urban mobile application, which is also a simple and yet sufficiently effective solution for the transformation of cities into Smart Cities. The main benefit is the implementation of research assessing the requirements of the citizens of a particular city for the services and functions that the application should offer. After analysing the results, a specific urban application design was processed using User Interface and User Interface design. The proposal consists of seven consecutive phases. All phases were completed in solving the design and the result can be seen in the resulting interactive prototype, which was finally tested by authors and random users representing all age categories. The results of the prototype usability tests enabled a gradual improvement of the solution, which culminated in the confirmation of its effectiveness.

The smart city concept has entered the public debate over the last decade as a concept for the development of urban space for the efficiency, improvement and availability of public and private services and sustainability. The Business Models Canvas is most often used in the literature for the creation of business models of smart services. On the basis of the above, we investigated whether the Business Models Canvas is the most used tool for creating business models for public smart services in Slovakia and whether cities and municipalities need to evaluate their models for the provision of public smart services. However, there is no commonly used methodology for evaluating smart city business models to help both practitioners and researchers choose the best option. The goal of the research is to create a tool for evaluating business models of public smart services in smart cities. The base method used was the Delphi method, based on the previous primary (content) analysis process of the Business Model Canvas best practices. In total, 709 towns and villages participated in the primary research. Subsequently, the obtained data were evaluated and used for further research using the Delphi method, in which 28 experts participated. The research was carried out between 2020 and 2023 in Slovakia. Primary research confirmed that the Business Models Canvas is the most used tool for creating business models for public smart services in Slovakia and cities and municipalities need to evaluate their models for the provision of public smart services. Areas and basic building blocks were also identified for the design of the evaluation methodology of business models for public smart services. The proposal of the methodology for evaluating business smodels for public smart services in Slovakia was implemented using the Delphi method with the cooperation of 28 experts. Based on the results of the Delphi method, a methodological procedure for evaluating business models for public smart services was established. The methodology proposed in the paper is a simple, organized, flexible and transparent system that facilitates the work of evaluators of business models of public smart services and marketing.