Review and Analysis of German Mobile Apps for Inflammatory Bowel Disease Management Using the Mobile Application Rating Scale: Systematic Search in App Stores and Content Analysis

Maximilian Gerner   ^{1, 2} , MD ;   Nicolas Vuillerme   ^{3, 4, 5} , PhD ;   Timothée Aubourg   ^{3, 4} , PhD ;   Eva-Maria Messner   ⁶ , PsyD ;   Yannik Terhorst   ⁶ , MSc ;   Verena Hörmann   ^{1, 2} , MD ;   Ingo Ganzleben   ^{1, 2} , MD ;   Hannah Schenker   ^{2, 7} , MD ;   Georg Schett   ^{2, 7} , MD ;   Raja Atreya   ^{1, 2} , MD ;   Markus F Neurath   ^{1, 2} , MD ;   Johannes Knitza   ^{2, 3, 7 *} , MD ;   Till Orlemann   ^{1, 2 *} , MD

¹ Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany

² Deutsches Zentrum für Immuntherapie, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany

³ Autonomie, Gérontologie, E-santé, Imagerie et Société, Université Grenoble Alpes, Grenoble, France

⁴ LabCom Telecom4Health, Orange Labs, Université Grenoble Alpes, Centre national de la recherche scientifique, Inria, Grenoble INP-UGA, Grenoble, France

⁵ Institut Universitaire de France, Paris, France

⁶ Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, University of Ulm, Ulm, Germany

⁷ Department of Internal Medicine 3, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany

*these authors contributed equally