Logic of Science is a Chinese metaphysics charting and reading tool: Four Pillars (BaZi), Qi Zheng Si Yu star charts and Liu Yao hexagram casting. Calculations run on our cloud server and results are shown on your phone.
Basic charting works without signing in. Signing in with Google unlocks more features such as daily/hourly pillars, in-depth analysis, AI prompt generation, auspicious-date selection, hexagram readings, timing notes and compatibility charts.