Except general people should be using pharmacists; in-hours GPs or out of hours doctors and walk-in-centres; and minor injuries units. A&E should be reserved for emergency care. There's a very small percentage of people who need an A&E department and this app would be great for them, but please don't send people who are not in an emergency to A&E.
http://www.nhs.uk/NHSEngland/AboutNHSservices/Pages/NHSservi...