Provider and contact
Huaguangxian is developed and provided by Feng Yang (Apple Developer account display name: yang feng). For privacy questions, email y9131913@gmail.com. This policy covers the current iPhone, iPad and Mac versions.
On-device processing and storage
Astronomy and calendar calculations and reading of bundled cultural content take place on your device. Selected dates and observing locations are used for the current calculation. Your language preference, reading font size, bookmarks, completion history and reading positions are stored in the app’s local storage for later use. 华光显 does not upload these data to the developer.
Permissions and data collection
The current version requires no registration or sign-in and has no developer-operated user server, advertising SDK, third-party behavioral analytics or cross-app tracking. You choose an observing location from a built-in list or enter it manually. The app does not request device location permission or access contacts, the camera, microphone or photos. The current version has no in-app purchases or subscriptions.
External links and contacting us
Third-party reference and license websites are opened in your system browser only when you choose a link; those sites handle network requests under their own privacy policies. Choosing the support email opens your mail app, where you decide what to include and whether to send. Please do not include passwords, payment details or unnecessary personal information. Information you voluntarily send is used only to respond to and address your request, not for advertising or profiling.
Retention, deletion and choices
Local reading data remains until you clear reading data in Settings & About or delete the relevant app data. You can change your language preference at any time. The app has no cloud account to close. For support correspondence that you send voluntarily, contact the same email address to request access, correction or deletion. Such correspondence is retained only as long as needed to handle the request, unless retention is required by law. System backups and system diagnostics are managed through your Apple system settings.
Policy updates
If future versions add accounts, online services, purchases or other data processing, we will update this policy and provide information and choices as applicable. Last updated: September 30, 2026.