CAReNA is a lifestyle application designed for iPhone users that focuses on medical fitness by collaborating with healthcare organizations. The app offers a variety of services, including exercise videos tailored to individual goals and physical conditions, enabling users to engage in activities aimed at preventing obesity, improving hypertension, alleviating back pain, and enhancing posture.

In addition to exercise guidance, CAReNA integrates with iOS Health to automatically track steps and allows users to log daily weight, blood pressure, heart rate, and exercise achievements. The app features health surveys for personalized advice from experts, health tips based on recorded data, and a points system that rewards users for their activity, which can be exchanged for health-related products. Note that some features may require specific contracts or the latest OMRON connect app for full functionality.