Still, many (especially older) people from Western and Southeastern Europe can´t communicate, because they do not speak a common language. At the European festival of the Danube-Networkers on 7.4. in Ulm, the conversation app, developed within the frame of the project ODDA (odda.eu), was successfully tested. It makes it possible for the users to talk through an app (with Audio) about simple things of normal life (greeting, family, hobbies, etc). Thus, the German participants managed to talk to the Bulgarian and Romanian guests, but also a conversation between the Bulgarian and Romanian guests was possible. More information on the website of ODDA or in the description of the app: ODDA-SCT App english .