The app costs between £7.99 and £19.99 a month, depending on the level of contact users have with clinicians, or users can opt for a pay-as-you-go service which charges £24 per consultation. Ali Parsa, chief executive of babylon, said: “We are taking advantage of the huge advances made in technology, and linking this with the healthcare system to create a bespoke app that acts as a personal virtual hospital.