The first step to feeling better is knowing where you are today.

* This is not a diagnostic tool and is never enough to make a diagnosis. Talk with your doctor if you think you may have depression. They’re there to help you figure it out and get better.

How is my depression score calculated?

We use a medically-validated screening tool called the PHQ-9. It's one of the most-used ways of asking people how they feel, and connecting that to a potential diagnosis of depression. It's a good way to find out where you are today, and to kick off a discussion with a doctor or therapist. However, it's just a screening tool for your information. Only a doctor can make a diagnosis and prescribe medications to treat depression.

Track your side effects with Start, a free iPhone app we made to help you decide if an antidepressant works for you.

Type your phone number, and we'll send an install link straight to your iPhone.

What People Are Saying About Start

Start has been an amazing resource for me in learning about depression medication options and feeling like I have an active role in charting my personal progress.

My psychiatric nurse practitioner thought the app was an awesome way to help depressed patients feel agency and informed in their medication process between check-ins. Personally, I've found the alarms and check-ins on Start to be helpful mindfulness reinforcements.

Lauren G., 25, Boston, MA