Happiness is really complicated and scientists still don't understand how it works. Happiness Quest is a citizen science project started by psychologists at Yale University and University College London.

We bring classic psychology experiments from the research lab to your pocket!

By playing the short games in the app, you are helping researchers discover what makes happiness go up and down, a crucial piece of research that can contribute to our understanding of mood disorders like anxiety and depression.

We are trying to figure out the equations for happiness. Anyone can contribute to happiness research in just a few minutes!