A free program for Android, by MoodPanda.

MoodPanda is a mood diary app that connects you with a supportive community of over 200,000 people who have also made it through hard times. We provide anonymous support and a safe space for people to talk about their problems, advice and make friends. Our community is so supportive that we have a chat room where you can talk to people who are going through the same thing as you. We will also connect you with other people who have experienced similar things and can provide you with advice, love and friendship.

How do I use MoodPanda?

You can use MoodPanda on your phone, tablet and even the web. Just log in using your email and password and you can start talking to people who are going through the same thing as you.