Comparison
vaken vs CastIChing: AI interpretation or pure Wilhelm text?
CastIChing publicly removed AI from their I Ching app and wrote a manifesto about why. vaken does the opposite — AI is the core interpretation layer. The choice between them is the choice between two valid traditions of I Ching practice.
At a glance
| Dimension | vaken | CastIChing |
|---|---|---|
| Tagline | AI-powered I Ching decision tool, grounded in Wilhelm/Baynes | Free I Ching divination, Wilhelm-only, no AI |
| Pricing | $9.99/mo or $79/yr · free tier | Free · no signup |
| I Ching feature | Yes (core) | Yes |
| AI interpretation | Yes (DeepSeek + Wilhelm) | No |
| Hexagram pages | All 64 indexed | All 64 indexed |
| Account required | Optional (anon tier available) | Stateless (no account) |
Where vaken wins
- 01
The reading is about your specific question
CastIChing gives you the Wilhelm translation. vaken interprets that translation through what you typed. Ask "should I leave this job" and get Hexagram 4 — vaken's reading is about leaving the job; CastIChing's reading is the unaltered Wilhelm text. Both are valid; they serve different uses.
- 02
Account-based reading history
CastIChing is stateless by design. vaken saves every reading you cast so you can return, compare across time, and notice patterns.
- 03
Modern situational interpretation
Every vaken hexagram page has both the Wilhelm text AND a modern situational reading explaining what the hexagram is saying about life decisions, not just abstract symbolism.
- 04
Funded continued development
vaken's paid tier funds ongoing content work — comparison pages, blog articles, expanded hexagram coverage. CastIChing is free-forever, which is great but limits content velocity.
Where CastIChing wins
- 01
It is free, forever, no account
Zero friction, zero recurring cost. If you want the Wilhelm text and only the Wilhelm text, that's a complete product.
- 02
Wilhelm purism
The text is presented unaltered. No AI gloss, no modern reframe, no marketing layer. If that's what you came for, CastIChing delivers.
- 03
The manifesto is worth reading
Their "Why I Removed AI" post makes a real argument about AI's role in divination. Read it before deciding which app fits your practice.
Which to pick
If you've practiced the I Ching for years and you want the Wilhelm text without an AI interpretive layer, use CastIChing. If you're using the I Ching for specific decisions and you want the text refracted through your actual question, use vaken. Some people use both — CastIChing for study, vaken for live readings.
Decide by casting, not by reading
Ask the I Ching what to do.
Three readings free every day. No account needed for your first one.