Art4Europe is an application developed during international competition Hack4Europe, which was hosted by the Europeana Fundation in association with European Commision. For the purpose of the competition the foundation made available its database containing 19 million records in a form of the API providing special data, mainly about the paintings. Application uses the abovementioned database. Art4Europe identifies paintings based on photos taken with a smartphone camera. It was the competition winner in a category of „software of the highest commercial potential”.