Moody Month is a daily hormone and cycle app made by a small, women-owned and women-run team in London, UK. It started in 2017 because Amy Thomson needed something that told her what her own body was likely to do next, and nothing did.

In my twenties, I had the career I’d always worked towards. I founded a communications agency and worked with some of the biggest brands in the world, from Nike to LVMH. But building that business came at a cost. I burnt out, and my periods stopped. My career was at its peak while my health was at its lowest.
What I had never learnt is that hormones and mental health work as one system. You can’t outrun stress, and you can’t diet your way out of anxiety.
At school, we learnt what hormones do. We also learnt that success and a career mattered. But no one connected the two. No one told us that lasting success means working with your hormones, not against them, because no career survives if you can’t get out of bed in the morning.

Amy Thomson,
CEO and co-founder, Moody
The forecast copy you read each morning is written and checked by hand, by the same small team. The screens are designed by us. When you write in, one of us reads it. We build new features from what you tell us.





Moody Month is built with women’s health experts. They review all health information in the app and on this site.
Dr. Christin Drake, Psychiatrist (MD) · Dr. Hiba Sher Khan, OB-GYN (MD) · Lola Ross, Nutritionist (BSc, mBANT, CNHC)








