Gamification is a promising approach to tackle users’ infrequent and decreasing use of health apps. For this purpose, extant research provides developers of health apps with a vast number of different game elements. By abstracting from the implementation of single game elements and choosing a more holistic approach to gamification concepts, we iteratively develop a taxonomy of gamification concepts for health apps using inductive and deductive approaches and discuss its transferability to other gamification contexts. We contribute to a profound understanding of the main characteristics of gamification concepts and enable researchers and practitioners to classify and distinguish them. Our results provide interesting insights in to the essential characteristics of health apps’ gamification concepts.