Everyone must register on the app as that will ensure an appointment and get vaccinated in an orderly manner. Almost all vaccination centres are mentioned on the app. It will be preferable if everyone registered on the app so that everyone can be vaccinated in an orderly manner. The final certificate of vaccination is also digitally available on the app. Registrations on the app also help us better track the adverse effects of post-vaccination: RS Sharma, Chief, CoWin App.