Why I built this
I was diagnosed with PCOS as a teenager. For years, I tried every period tracking app I could find. They all worked the same way: enter your last period, get a prediction. Tidy little calendars. Perfect 28-day cycles.
My cycle was never 28 days. Some months it was 35. Some months it was 50. Some months it didn't come at all. Every app I used told me I was "late" — even though I'd never been regular a day in my life. That's not late. That's just me.
I started building Cyluna because I was exhausted by the anxiety those apps created. The panic every time a countdown hit zero. The googling at 2 am. The cycle of fear and relief that should never have existed in the first place.
I'm not a doctor, and Cyluna isn't medical advice. But I am someone who has spent years researching hormones, menstrual health, and what it actually feels like to live in a body that doesn't follow the textbook. I built the tools I wish had existed for me — ones that assume irregular is normal, that give you context instead of just a date, and that never make you feel broken for being yourself.
Every calculator on this site was built with real medical guidance — not guesswork. The formulas are grounded in NHS, Mayo Clinic, and ACOG clinical guidelines. But the tone? That's me. A friend who happens to know a lot about cycles.
I hope Cyluna helps you feel less alone, less anxious, and more in tune with your body. That's the whole point.
— Kanika