问易 Yi

From uncertainty to a decision of your own | Listen · Illuminate · Walk beside you. I Ching study and a private reflection journal. On-device AI. No fortune-telling.

From uncertainty to a decision of your own | Listen · Illuminate · Walk beside you. Yi is an I Ching (Book of Changes) study companion and a private decision-reflection journal for the long term. Whether the uncertainty concerns work, family, relationships, education, or what comes next, Yi helps you see the situation clearly and make a decision that is truly your own. It does not predict outcomes or decide for you. It helps you clarify one real question, record your reflection, and later revisit why you chose as you did.

READ THE CLASSIC • Browse and study all 64 hexagrams in the Read tab. • Each hexagram includes verbatim source text from the authoritative Zhonghua Book Company edition of the Zhouyi, a readable guide, and commentary from multiple classical schools with citations.

REFLECT, DON'T PREDICT • Clarify a real question, read a reflective interpretation, and save your thoughts. • Review past entries to notice your own patterns. Yi supports reflection; it does not make decisions for you.

PRIVATE BY DESIGN • Study assistance runs entirely on your device. Your questions are not sent to a cloud model. • Optional sync between your devices is end-to-end encrypted. The service cannot read synced content. • Export or permanently delete your data at any time.

FOR LEARNERS • Study in Simplified Chinese, Traditional Chinese, English, or Japanese. • Follow structured courses, source editions, long-form stories, and your own reading progress.

Yi is for reflection and study only. Its content is not medical, legal, financial, or investment advice.

SUBSCRIPTION (OPTIONAL) Yi is free to use, including the 64 hexagrams, source text, multi-school commentary, local journaling, basic sharing, and public study cards. Yi Plus adds structured courses, progress and study badges, full encrypted sync and restore, richer review schedules, on-device multilingual study support, advanced share cards, and report discounts. Yi Master includes all Plus benefits plus collector reports, Master notes, service priority, Patron status, beta access, and collector visual packs. Subscriptions renew automatically and can be managed or cancelled in your Apple Account settings.

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