INS and diabetes mellitus: Four trials tested apps for type 1 diabetes patients, of which two demonstrated a significant between group reduction in HbA1c levels.17,20 One trial that tested an app for type 2 diabetes patients did not show any between group differences in HbA1c levels at one year.19 All the diabetes apps include functions to log blood glucose levels, insulin dose, diet and physical activity, and to set push notifications and reminders.