People increasingly search the Internet regarding their health issues and a Google search may be the commonest in most instances. Even doctors ‘Google’ for a diagnosis [Ref].
Recently there has been a proliferation of more sophisticated programs called ‘symptom checkers‘ that attempt to more effectively provide a potential diagnosis for patients and direct them to the appropriate care setting. Many healthcare institutions provide symptom checkers such as WebMD, Mayo Clinic, HealthLine.
Isabel uses the orthodox text-searching. Babylon uses a ‘Chatbot‘ – newer machine learning techniques that are part of AI. (You can even build a Chatbot to book a flight in under 7 minutes using IBM Watson!). However, you cannot build something like Isabel that easily. Its often debated what’s the best but the answer is it depends.
Isabel is also a tool that is used by medical experts when diagnoses are difficult and when one has to even think about rare diseases. Babylon does not offer this kind of professional facilities.