Privacy Policy

Last updated: April 2026

What We Collect

Nothing. LunaCycle does not collect any personal information, usage statistics, or analytics of any kind. We receive a non-reversible transaction token from Apple to verify purchases.

How Your Data Is Stored

LunaCycle stores your data in a local SwiftData database on your device. This includes:

• Period start and end dates
• Flow intensity logs
• Mood and symptom entries
• Basal body temperature and weight records
• Daily notes

None of this data leaves your device. There is no server, no cloud sync, and no account.

Apple Health

If you grant permission, LunaCycle can read and write menstrual cycle data to Apple Health. This data is managed entirely by Apple's HealthKit framework on your device and is never transmitted to us.

Notifications

LunaCycle may send local notifications to remind you of upcoming period or fertile window predictions. These notifications are generated on-device and do not involve any external server.

In-App Purchases

LunaCycle offers optional in-app purchases processed entirely by Apple. We do not see, store, or have access to your payment information. Refer to Apple's Privacy Policy for details.

Third-Party SDKs

LunaCycle does not integrate any third-party analytics, advertising, or tracking SDKs. The only third-party library used is Lottie (animation), which does not collect any data.

Children's Privacy

LunaCycle does not knowingly collect information from children under 13. Since we collect no personal data from any user, this policy applies equally to users of all ages.

How to Delete Your Data

Uninstall the app to delete all data stored on your device. If you shared data with Apple Health, you can remove it via the Health app on your iPhone. No data exists on our servers.

Changes to This Policy

If we update this policy, we will revise the "Last updated" date above. Continued use of the app constitutes acceptance of the updated policy.

Contact

Questions about this privacy policy?