Support — Moon Calendar
We respond quickly.
How does the Moon phase work?
The app calculates the current lunar phase locally using astronomical approximation based on the synodic month cycle. No network connection is required. Phase data updates automatically each day.
What does Compatibility Unlock include?
A structured compatibility analysis between two lunar profiles within the current year context. Each unique combination is unlocked once through an in-app purchase. If another profile shares the same lunar match, it is already unlocked.
Do I need an account?
No. The app requires no account, no email, and no sign-up. Everything runs locally on your device.
Is my data stored online?
No. All data — profiles, unlocked analyses, and preferences — is stored in the iOS Keychain on your device. Nothing is sent to external servers.
How do I change language?
Use the globe icon in-app. You can switch between English and Spanish. Changes apply immediately with no restart required.