Dr Stephan Jonas acquired his master degree in Computer Science with a minor in Medicine from the RWTH Aachen University. After graduation, he received a fellowship from the Swiss National Foundation that allowed him to be a visiting researcher at the Yale University School of Medicine (New Haven, Connecticut, USA) and Reykjavik University (Reykjavik, Iceland). In 2010, Stephan Jonas was enlisted by the Department of Diagnostic Radiology at the Yale University School of Medicine as a lecturer. He earned a doctorate degree in theoretical medicine with distinction during a cooperation with the Department of Medical Informatics at the RWTH Aachen University where he also started his work on mobile smartphone-based diagnostic. Stephan Jonas returned to the Uniklink RWTH Aachen in December 2012 and founded the research division for mobile health (mHealth) at the Department of Medical Informatics in 2014.