The Instinctive Notes App is designed to work offline.
If you don’t have connectivity you can continue taking notes and these will be sent to Instinctive Notes servers when you get connectivity again.
If there is an extended period without connectivity then your Appointments list will become out of date. You can continue to taking clinical notes for your patients even if there is no appointment.
You can safely work offline knowing that everything you record will be synced up to the cloud when it's available again.