01 / 观象 · OBSERVE
Follow the sky. See the patterns.
Explore the solar system, celestial sphere and calendar astronomy through time controls, trajectories and traditional Chinese asterisms.
CHINESE CULTURE · STUDY & TOOLS
Chinese culture.
Connected knowledge.
Bring Chinese cultural knowledge, classical ideas, interactive diagrams and practical study tools together. Explore yin-yang, the Five Phases, symbolic traditions and seasonal calendars through reading and hands-on discovery.
iPhone · iPad · Mac / English & 简体中文
OBSERVE · SEASONS · LEARNBEGIN WITH IDEAS
CONNECT KNOWLEDGE & LIFE
Rooted in Chinese culture, Huaguangxian connects classical knowledge, the foundations of Yijing and shushu traditions, interactive diagrams and tools for understanding time. The current release brings these ideas to life through Learn, Seasons and Observe.
THE CURRENT APP · THREE CHAPTERS
From observing to understanding.
02 / 岁时 · SEASONS
Find your place in the seasons.
Connect Gregorian and Chinese calendar dates, solar terms and lunar phases. Read the stem–branch double-hour and its current quarter, from a single day to the cycle of the year.
03 / 知象 · LEARN
Read the texts. Explore the ideas.
Use lessons, diagrams and interactive exercises to learn about yin and yang, the Five Phases, stems and branches, hexagrams, asterisms and traditional pitch systems. Search the texts, bookmark chapters and follow their references.
OPEN A CHAPTER. TAKE YOUR TIME.
Room for thoughtful exploration.
Made for your Apple devices
Layouts adapt to iPhone, iPad and Mac screens and windows. Requires iOS, iPadOS or macOS 26 or later.
Two languages, original context
Switch the interface and learning content between Chinese and English. Traditional names and classical passages may retain Chinese alongside English explanations.
Explore offline
Calculations and bundled lessons run on your device. No account or in-app subscription is required. External references and sending email require an internet connection.
ABOUT HUAGUANGXIAN
Every observation
opens a new question.
Read about calendar conventions, references and privacy, or get in touch.
An official download link is not yet available. It will be added here after release.