Inclusion Criteria:  voluntarily accepting to participate in the study 18 years and over Having planned surgery Conscious Open Coming to the clinic from the intensive care unit after the operation Having no vision, hearing and speech problems Stable clinical condition Able to communicate Having a phone with Android operating system (for the experimental group) Patients without a psychiatric history  Exclusion Criteria:  Cancellation of the operation Inability to communicate with the patient The patient's desire to withdraw from the study Deterioration of the patient's clinical condition The patient's inability to use the mobile application