The topic of this thesis is the development of a software system for evaluating and commenting a socially useful application, written using the PHP programming language. It is necessary to create a database of student restaurants which will be used for testing the built system. Ratings and user comments will be saved under evaluated or commented restaurant. After evaluation, customer will be able to see the rate he evaluated and average score of the restaurant. Due to the potential abuse of the system by users, the importance of the module for restrictions is emphasized, and it will be made in a way that evaluations and comments for each student restaurant is restricted to once a week per user. With the creation of systems for evaluation and comments, the module to serve data from the database will be developed, according to local time. This part will prove the advantage of using an XML format for describing information in relation to the MySQL database. That system will provide information when the student restaurant is open, and when closed. Then the modules would be implemented in the Android application. After that, the importance of optimizing the visual part of the module for specific resolutions would be emphasized, with consideration to the diversity of Android mobile devices.