Regional Museum of History – Dobrich successfully implemented the planned activities connected with WWI mobile application testing. Some youth workers were chosen as moderators to work together with students. More than ten different meetings were done in different cities and villages in Northeast Bulgaria. During those activities young people were told about the NETWORLD project and were given the opportunity to download the application at https://ww1sites.app . Furthermore they tested its options on the spot visiting some WWI cultural heritage sites in the region. Students shared their firsthand impressions and gave us an objective feedback.