Long-term health management is difficult for the continually expanding population of chronic disease sufferers. Smartphone interventions appear to be promising. Lifestyle variables have a key role in the development of chronic diseases such as heart disease, lung disease, and diabetes, and adjustments in lifestyle habits associated with these disorders can reduce chronic disease risk. The potential and evidence base for leveraging modern technology applications and platforms within the new communications environment to improve the prevention and management of lifestyle-related chronic diseases in the future are then considered. We explore the consequences and adaptation of lessons learned from the commercial and political applications of new technology, as well as their significance to public health. Studies discovered that the smartphone intervention was a completely or partially useful technique for assisting in the management of several chronic conditions. Patients with chronic conditions who used health-related smartphone apps are felt secure in the knowledge that their illnesses were being closely tracked, participated in their own health management more effectively, and believed that they had not been forgotten by their doctors and were being taken care of even outside the hospital/clinic. This article discusses the aspects of smartphone interventions for long-term chronic condition care, as well as how these applications benefit chronic disease patients. However, there are few smartphone apps for long-term chronic disease management. More smartphone apps are needed to assist people in managing chronic conditions.