LearningApps.org is a free tool to create small interactive, multimedia building blocks online to support the learning and teaching process. A series of templates (called apps) is available for the building blocks (matching tasks, multiple choice tests, etc.), which can be integrated into various learning contents and teaching scenarios. Due to the intuitive approach to creating learning modules, LearningApps.org can also be used by the students themselves. Completely in the sense constructivist learning scenarios can be used in the classroom by the learners to perform their own tasks for consolidation and repetition of a theme.