SATELLITE APP APPENDIX

Yuun

Daily Chinese almanac (黄历) in the HexAstral universe. Anonymous and account-free by default — the base almanac is deterministic. Signing in is optional and only needed to subscribe or to carry data to other universe apps such as Yuel.

App-specific data flows

• An optional birth date is stored locally on your device and sent only as a request parameter (never as an account) to compute the personalized "对你而言" overlay.
• 亲友 (friends & family) you add stay on your device; you may export an eligible 亲友 to Yuel as a bond, and import a Yuel bond back into Yuun — only when you choose to, over your one shared sign-in.
• Daily reminders are scheduled as local notifications on the device — no push token is registered and no server-side schedule is stored.
• The optional AI "deep reading" sends only the date, the selected 宜/忌 field, and your day-master stem (not your full birth date) to authorized LLM providers under DPAs; cost-guarded, no biometric data.
• Anonymous funnel telemetry may record steps under target_app=auspice. No ads, no tracking.