Track, offline
Log your cycle and symptoms anywhere — no internet needed. Kin syncs when you're back online.
Your cycle, understood.
Your circle, connected.
Kin is the cycle companion that keeps you informed — and keeps the people who love you close.
You've been tracking your cycle alone.
Even when the people around you wanted to help.
Even when you wanted them to understand.
Even when it would have made everything easier.
Kin is not just a period tracker.
It's a cycle companion — for you, and for the people in your life who want to show up when it matters most.
You log your cycle, your symptoms, your moods. Kin turns that into understanding. And with your permission, it helps the people who love you understand too.
The experience
How it feels to use Kin.
Understand your body
AI-powered insights explain what your symptoms mean, what's coming, and how to prepare — backed by real research.
Stay informed on WhatsApp
Kin meets you where you already are. Get timely cycle updates and reminders directly on WhatsApp — no need to open the app.
For the people who want to show up — but never know how.
Kin lets you share exactly what you want, with exactly who you choose. Your partner, your sister, your father, your friend — they get gentle, timely awareness. You stay in control of every detail.
See how sharing worksYour cycle deserves more than a calendar.
Join the women — and the people who love them — already using Kin.
Get Started — FreeNo ads. No data selling. Your health is yours.