Help Center
Frequently asked questions about LunaPCOS: predictions, logging, reminders, your data and your account.
How are period predictions calculated?
We use a weighted average of your completed cycle lengths, with recent cycles counting more. Until there are enough records, the averages in Profile › Cycle Settings are used. Very short (under 15 days) or very long (over 120 days) gaps are treated as missing records and left out.
Why don't I see predictions in my calendar?
If you said your cycle is irregular, or your records show an irregular cycle, the App doesn't show period or ovulation predictions, because they would be misleading. You can still see your records and cycle history.
My period started. How do I log it?
Tap Started on the home screen, or pick the day in the Calendar tab. When your period ends, mark it as Ended in the same place. If that's much earlier than your usual period length, the App will check that you're sure.
How do I update my height and weight?
Add a new measurement and see your history under Profile › Height and weight.
I'm not getting reminders
- Check that the reminder is on under Profile › Notifications.
- Make sure LunaPCOS is allowed to send notifications in your phone's settings.
- Reminders are scheduled on your device and refreshed when you open the App. If you haven't opened it for a while, open it once.
How do I change the language or appearance?
Use Profile › Language for the language and Profile › Dark Mode for light or dark appearance.
Is my data safe?
Your data travels over an encrypted connection and is used only to provide the service to you. We show no ads and don't sell your data. See the Privacy Policy for details.
How do I withdraw my consent?
Go to Profile › Legal › Withdraw consent. Health features are unavailable until you consent again.
Can I get a copy of my data?
Yes. Write to [email protected] from your account's email address and we'll send your data within 30 days.
How do I delete my account?
Go to Profile › Delete Account Permanently. Your sign-in account is deleted and the data on your device is cleared. You can also write to us to have your records erased permanently from our systems.
Contact us
For questions, ideas and feedback: [email protected]