This paper describes the development process of a web application named Planer putovanja which enables trip planning between several large cities of the Republic of Croatia. At the moment, there are no tools available on the market that would allow the planning of trips taking public transportation information into consideration. The motivation behind the creation of this application was to fill that gap in the market by offering a solution in a form of an application that offers information from several public transportation operators and several public transportation types. The theoretical part of the paper beings with an analysis of already available solutions. Before the analysis itself, the criteria taken into consideration are clearly listed and described. The criteria are functionality, design, content, originality and effectiveness. The analysis also includes a brief description of the application's goal and a detailed break-down of the offered solution by previously determined criteria, accompanied by the appropriate screenshots of the application's interface.