Myohanmun (妙閑門) is a manseryeok almanac app that not only builds the four-pillar chart but also shows the reasoning behind it, from solar-term boundaries to true solar time corrected by birth longitude.
The chart lists stems and branches, five elements, ten gods, twelve life stages and hidden stems; months follow solar terms, the year starts at Lichun, and lunar and solar dates convert automatically to the minute. Charts are saved to your account, family and partners can be added for side-by-side comparison, and a daily pillar plus a month-long saju calendar are always available in Korean, English, Japanese and Chinese.
The guide Myohan rewrites the chart into plain prose of 3,000-plus characters per section, pointing to the chart letters behind each line; date selection, five-element name candidates, career aptitude and a luck-cycle timeline are included, with eight-area deep analysis on a monthly subscription.
