Augmentation of Standard Psychotherapy With a Habit Change App

The goal of this clinical trial is to document the efficacy of using a habit change application (app) as an adjunct to standard psychotherapy among individuals with diabetes receiving mental health treatment for depression, anxiety, or substance use disorders. The main questions it aims to answer are: Question 1: When behavioral health treatment is augmented with a habit change app for between visit care, does the use of this tool improve mental and behavioral health outcomes? Question 2: Are there certain populations who benefit more from using a habit change app? Question 3: Does use of a habit change app impact healthcare utilization and costs? Exploratory Research Question: Does use of a habit change app impact physical health outcomes, including A1c levels, blood pressure, and weight? Participants selected to receive the habit change app will be asked to track goals that they set for themselves in adjunct to their current behavioral health treatment; those selected for treatment as usual will have no additional steps to take. Researchers will compare the groups to see if there are different outcomes in symptom reports and healthcare utilization.