The goal of our project is the preparation, organization and creation of a mobile phone app for an international quiz of knowledge taught at all schools as well as general and civic knowledge. The participating schools are located in Germany, Greece, the Netherlands, Poland and Spain. The quiz will be available in the languages of the schools & in English. So the pupils will improve their skills and knowledge in the subjects the quiz will be based on (e.g. Maths, History etc) & improve their English language skills as well as their writing abilities in their mother tongues.