-Inevitably, as our basic human needs (food, housing, etc.) are assured in any developed society, the differentiation factors for our Quality of Life (QoL) relate to our greater capacity to make informed decisions across daily life activities, especially those related to our health. Availability of powerful, personalized and wearable mobile devices facilitates the provision of ubiquitous computing applications enabling the health monitoring and QoL improvement. This paper introduces the concept of QoL technologies and presents examples of currently researched mobile services for monitoring and improvement of the individual's day-to-day physical and psychological health, social interactions or environmental conditions. Furthermore, it defines the quality of service (QoS), individual's quality of experience (QoE) and interrelation between the QoS, QoE and QoL. It summarizes the technical and trans-disciplinary aspects of the research process and challenges identified so far, and it delineates the future work areas for a successful deployment and adoption of QoL technologies.