The spread of the Internet of Things (IoT) has expanded research frameworks until it has reached on health care. The revolution of IoT has drawn attention to redesigning modern health care with new technologies. Recently, mobile phone applications have become one of the most important devices in the healthcare domain. It allows the patient and doctors to communicate and make different procedures, which make life more flexible and save the life of the patient. mHealth gives a new and quick way of collecting health-related information. There are several kinds in which mobile Apps can be categorized into while there will be a lot out there. In this paper, we have summarized the proposed application in this domain, we will focus on the main parent categories and provide examples in each.