知易八字 is a lifestyle application catering to enthusiasts of Chinese metaphysics and classical culture. It integrates powerful Four Pillars calculation tools with an extensive repository of Chinese destiny examples and a search engine, facilitating seamless learning, research, and discussions. The main features include:

The app offers a classical library and search engine containing a wide range of traditional Chinese cultural books. Users can create personal libraries and automatically generate Four Pillars charts while reading, enhancing convenience. Additionally, users can search for discussions on similar concepts across different classical texts using keywords.

Within the app, users can access the Zhiyi community, where experts in Chinese metaphysics gather to share and discuss their learning and research experiences. The integration of community posts and charting functions provides a comfortable space for interaction and browsing.

The software includes a vast destiny database and a powerful destiny search engine, currently housing over 70,000 cases with detailed information categorized by labels such as profession, health, and sexual orientation. This allows enthusiasts to conduct in-depth research on specific topics.