Yes, Moon Phase Calendar offers a free version with limited features, as well as a free trial for users interested in exploring premium features before committing to a subscription.

No, Moon Phase Calendar does not require an internet connection for basic functionalities, as it uses preloaded lunar data; however, some features may benefit from online access for updates.

Users can contact support or send feedback via the app's help section, which provides options for email support and links to community forums for additional assistance.

You can manage or cancel your subscription directly through your device's app store settings, allowing for seamless control over your subscription preferences.