Horosa

Horosa brings a professional Chinese calendrical and metaphysics engine to Apple Watch. Everything is computed on the watch itself: no iPhone required, no internet, no account, no data collection. The interface is in Simplified Chinese. ALMANAC (黄历) • Gregorian and lunar dates, GanZhi of year/month/day/hour, solar terms and festivals • Auspicious/inauspicious activities (宜忌), twelve Jianchu officers, yellow/black path, 28 mansions, nine stars • Lucky and unlucky spirits, clash and Sha directions, fetal god, direction compass for Xi/Fu/Cai/Gui spirits • Hour-by-hour luck strip with the current hour highlighted • Five schools of Tong Shu date selection, yearly best-days ranking, personalised date selection by BaZi DA LIU REN (大六壬) • One-tap "cast now" (double-tap gesture supported) or custom time, time zone and place • 26 casting methods, three Yue Jiang schools, five noble-person systems • Circular Heaven-Earth plate, four lessons, three transmissions, void branches • Hundred verses of Bi Fa auto-matched, plate patterns, prosperity phases, spirits, symbols, timing BAZI (八字) • Apparent solar time correction, day-boundary rules, historical daylight-saving detection • Four pillars with ten gods, hidden stems, NaYin, twelve phases, void • Five-element strength, luck pillars drilled down to year, month, day and hour • Spirits, stem/branch relations, pattern and useful god, seasonal balance, blind-school analysis COMPLICATIONS • Almanac: lunar date, GanZhi, Jianchu and 宜忌 in circular, rectangular, corner and inline styles • Liu Ren: one-tap cast entry All algorithms match the desktop edition of Horosa field by field. Calendar data is based on the open-source lunar library (MIT). Horosa is a reference tool for traditional Chinese calendrics and metaphysics. It does not provide medical, legal, financial or life advice.