The purpose of this article is to describe the development and design process of an educational app for teacher training. Online teaching and learning resources are used more than ever in teacher training. However, the utilization of digital technology in higher education shows unambiguously that very little has been transformed or improved so far (Selwyn, 2014: 109). Regarding teacher education specifically; the slow uptake of ICT is also documented (Tømte, 2015: 151). Using a design-based research methodology, the researchers were involved in planning, designing and developing new resources for new practices in flexible teacher-training studies. Through three iterative cycles, the main aim in this article is to describe aspects in the process of designing DLR for the hybridization of teacher training. The findings suggest several aspects of the design process that we believe can enhance teacher trainers and development of digital learning content in higher education.