In recent years, technological development has opened up new possibilities for health support, mobile health (mHealth) being one of them. mHealth apps are becoming more accessible to patients and are oriented to a variety of diseases, from the most common to the least prevalent. What is more, it has been reported that the information and additional support provided by these technologies can improve the patient-physician relationship in many aspects such as patients’ confidence, self-management, quality of life, and even health outcomes such as glycemic index control in diabetes, on which this letter focuses its interest. Due to this background, we analyzed the features of free diabetes apps in the Google Play Store...