How about the health station app in official website?

After user registration, information filling and system background audit are completed, you can download information from Personal Center >: I want to make an appointment. Users can apply for an appointment within 7 days in advance (including the same day). The system is open for appointment every day from 10-20:00, and a fixed number of appointments are open every day. Places will be allocated on a first-come-first-served basis. After the appointment is successful, the reserved quota will not be transferred and will become invalid after the date of entry or appointment. Remember to take a screenshot in green code after making an appointment.