Track what you feel
Log flow, pain, energy, mood and symptoms for any day. Patterns show how they change across your cycle.
Coming to iPhone this autumn
Live with your cycle, not against it.
Track pain, flow and energy in a few taps. See what each phase of your cycle needs: food, movement, supplements and rest. Everything stays on your phone.
Get early access
Why OneCycle exists
I met Selina in 2024 on a cruise ship, where she found out my cabin number before I told her. Since then I've seen her lose whole days to period pain: once in bed all day in a homestay on Lombok, once on our bathroom floor in Luxembourg. For years, doctors told her it was normal.
Tracking how she felt changed things. She began to notice her phases and to feel her period coming. So we built OneCycle, for her and for every woman who has been told “that's normal”.
Luka & Selina
Tips for every phase
Menstrual, follicular, ovulatory, luteal: what to eat, how to move, which supplements fit and how to time them.
Know what's coming
Your next period and fertile window, predicted from your own cycles, not an average.
Private by design
No account and no tracking. Your entries never leave your phone, so nobody else can see them. Not even us.
Be the first to try it
Join the waitlist and we'll email you when the app is ready, plus a short tip for your cycle now and then. No spam, and you can leave with one click.