"Check on Time" is a lifestyle and health management application designed by Tung Wah Group of Hospitals specifically for the elderly. It aims to allow the elderly to easily record their physical condition in daily life, pay attention to health changes, and improve their self-care ability. Through a simple and easy-to-use interface, the elderly can record personal health data such as blood pressure, body temperature, weight, blood oxygen, blood sugar, etc. at any time, and clearly present the changing trends of their physical condition in the form of charts to help them establish a stable and healthy lifestyle. The application also provides standard reference values to help the elderly understand the meaning of each data and make appropriate adjustments to their lives. This application is designed for registered members of the Elderly District Centres, Neighborhood Elderly Centres and Elderly Centres under the Tung Wah Group of Hospitals to support daily health management and make the elderly more independent and healthier in life. This is an intimate partner application in the lives of the elderly. Whether it is self-management or sharing health status with family/doctors, "Check on Time" makes caring for yourself easier and more convenient.