Hànzi Bāzì 瀚子八字 is a free Android application designed for Bazi practitioners, students, and enthusiasts. This app provides users with the ability to create detailed Bazi Charts, offering accurate calculations based on the exact solar time of birth, location, and time zone. Notably, it incorporates the Day Pillar change at 03:00 am, ensuring the highest level of precision in calculations.

The application features a range of tools including the Four Pillars, Cycle of the 12 Great Periods, and various balance charts for the 5 Elements, 5 Aspirations, and Yin-Yang. Additionally, users can access the Life Pillar and the Pillars of any date from 1924 toA comprehensive knowledge base is also included, allowing users to better understand and analyze their Bazi Charts.