Calendar sync
Sync your cycle with Apple Calendar
Your weeks already live in Apple Calendar — on your iPhone, your Mac, your watch. Nadi adds your menstrual cycle to the same view: all four phases, weeks ahead, from three inputs you give it once.
Why Apple Calendar users are underserved
Most cycle tools are standalone apps, and the few calendar overlays that exist tend to support Google only. Nadi supports Apple Calendar as a first-class option: your estimated phases — menstrual, follicular, ovulatory and luteal — appear as events in a dedicated calendar, everywhere your Apple Calendar syncs.
How it works
- Go to my.nadi.health and answer three questions: your last period start date, your average cycle length, and your average period length.
- Connect your Apple calendar. Nadi creates a separate, dedicated calendar and writes your cycle phase events into it.
- Plan as usual — on any device where your calendar lives. Toggle the Nadi calendar's visibility whenever you like, and update your inputs when your cycle changes.
No new app to download, no daily logging to keep up.
A calendar of its own
Because your phases live in their own dedicated calendar, they never mix with your other events — one tap shows or hides them, and if you ever disconnect, you can remove the Nadi calendar directly in Apple Calendar. Connection tokens are encrypted and deleted when you disconnect or delete your account. Details in our privacy policy.
Honest by design
Your phases are estimates calculated from the averages you provide — the method is published in full. Nadi is a planning tool, not an ovulation predictor or contraceptive method.
Add your cycle to Apple CalendarOn Google? See adding your period to Google Calendar or choosing a period tracker that syncs with Google Calendar. Curious about the phases themselves? Start with the four cycle phases and how your energy shifts across them.