Every year, the EVENT @ HAND World Water Day app contains information about the current World Water Day in Hungary.The application provides detailed information on national and regional / local competitions related to World Water Day (March 22), World Day events, their time and place. In the case of applications, it warns applicants of the deadline for submission.The application highlights programs and national competitions organized by the Danube Museum in Esztergom, as well as online quizzes launched by the museum.After downloading and installing the application, the content will be completely offline. This eliminates the need for an internet connection during use.