Three thousand years of yarrow-stalk wisdom, reading hexagrams through the original I Ching text — full judgments and line texts, read-aloud, and Apple Watch support.
The I Ching (Book of Changes) is one of the oldest classics of Chinese culture, holding profound philosophy and wisdom for life. This app casts your hexagram with the traditional yarrow-stalk method — the oldest and most orthodox way to divine fortune.
[Features]
• Yarrow-stalk & number divination: simulates the traditional yarrow-stalk cast, plus a quick number-based method; derives the primary and resulting hexagrams, marks the changing lines, reads them by Zhu Xi's rules, and offers ritual (筮儀) guidance
• Original I Ching text: the full Judgment, Tuàn commentary, Image, and the six line texts, each line paired with its own Image commentary
• Line-text glosses: phrase-by-phrase annotations that explain how each line's imagery arises (取象), with tap-to-look-up definitions
• Classics & Ten Wings: the Xù Guà, Shuō Guà, Zá Guà, and Xì Cí commentaries, with full-text search and quotation highlighting
• Glossary: every character gloss gathered into one searchable index
• Read aloud: speak the full hexagram text — judgment, line texts, and Image — to savour the rhythm of the classical Chinese
• 64 hexagrams: browse all sixty-four and look up any original text, with pure and monthly-sovereign (消息卦) hexagrams marked
• Sequence Song: the King Wen sequence mnemonic, with tappable hexagram names that open the hexagram detail
• Opposite, reverse & nuclear hexagrams: automatically derives the opposite (錯), reverse (綜), and nuclear (互) hexagrams, with one-tap navigation to broaden your reading
• Ask AI: long-press a reading to ask ChatGPT, Claude, Gemini, or Grok about it with the full hexagram context
• Daily Hexagram: a home-screen and watch-face widget shows the day's monthly-sovereign hexagram and the current solar term
• Reading history: records the date, time, and location of each divination, synced across your devices via iCloud
• Apple Watch: full Apple Watch support — cast a hexagram anytime, anywhere
Divination results are for reference only; their value lies in inspiring thought and broadening perspective.
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Version 3.25
• Korean interface: the app, the Watch app and the widgets are now fully localized in Korean
• 卦義 in the interpretation guide: tap ⓘ to see a one-phrase sense of the 本卦 and the 之卦 before the guide to reading a cast
• New 字義 button on the 爻辭 row: lists every gloss in the reading at once, instead of tapping each underlined term to discover it
• Moon phases on the 先天八卦 chart, pairing each trigram with its phase (月體納甲)
• 十二消息卦 widget layout: the hexagram name moved below the lines, and the 節氣 bar's end labels are no longer clipped by the card's rounded corners
• 數字卦 derivation card fix: the six lines are no longer drawn as two detached trigrams; matching fixes to the Watch settings and 十翼 quotation screens
• New character glosses for 大過, 既濟, 臨, 觀, 剝 and 復, plus thirty phrasing fixes across existing entries
Version 3.25
The developer, Chan Bill, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
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Accessibility
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Information
Provider
Chan Bill
Size
38.5 MB
Category
Entertainment
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
iPad Requires iPadOS 17.0 or later.
Mac Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 1.0 or later.
Apple Watch Requires watchOS 10.0 or later.
Languages
English and 4 more
English, Korean, Simplified Chinese, Traditional Chinese, Vietnamese