MoodTools aims help users manage symptoms of depression through Cognitive Behavioral Therapy (CBT) activities. The app contains a Thought Diary, to help users reframe negative thinking. The app provides educational information about depression, self-help guidelines, and links additional resources. Users can take the PHQ-9 depression questionnaire and track symptoms over time. MoodTools will also suggest a range of activities to the user, for example practicing gratitude, exercising, and mood can be tracked before and after completing the activity. Users can also create a safety plan to keep safe and access emergency resources during a suicidal crisis.