Listen
Begin with the uncertainty as you first felt it, preserving the question that truly mattered at that moment.
What is Yi?
From uncertainty to a decision of your own | Listen · Illuminate · Walk beside you
Career, family, relationships, education, or what comes next in life—Yi helps you see your situation clearly and make a decision that is truly your own.
With the I Ching as a mirror, Yi does not decide for you; it helps you think your decision through.
From uncertainty to a decision—and a record you can revisit
Illuminate
Use an opening symbol, a hexagram, the I Ching text and attributed commentary as new angles for separating facts, options and constraints.
Walk beside you
Each session becomes a dated record you can revisit, so your future self can understand why you made that decision.
What does one Yi session preserve?
After a session, the question, opening symbol, hexagram and reflection stay in one record and appear in both Records and Journal. If you begin without writing a question, the opening symbol, hexagram and date are still preserved.
Your question stays on your side
Personal questions and on-device interpretation are not sent to an external model. When you choose cross-device sync, the service receives only end-to-end encrypted content and cannot read the record itself.
Questions about Yi
What is Yi?
Yi is an iPhone app for I Ching classical-text study and decision-reflection journaling. It helps you set out the situation, options and constraints, then preserve a decision record you can revisit.
Does Yi make the decision for me?
No. Yi offers angles for observation and reflection. It does not tell you what will happen, replace fact-checking or professional advice, or make the final choice for you.
What is saved after each session?
The date, question, opening symbol, hexagram and reflection stay in one record and appear in both Records and Journal. Without a written question, the opening symbol, hexagram and date are still preserved.
Is my question sent to an external AI service?
No. Personal questions and interpretation are handled on device. Cross-device sync transfers only end-to-end encrypted content, which the service cannot read.
Can I begin before I have written a clear question?
Yes. You may write the uncertainty first or begin directly. Yi still preserves the opening symbol, hexagram and date for later review.