# Classic line 公式アプリ vs I Ching AI

The clearest difference is in-app purchases: Classic line 公式アプリ at none against I Ching AI's 5. I Ching AI's advantage is update cadence (weekly vs every 47 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. I Ching AI sells 5 in-app purchases, starting at $4.99 per month. Classic line 公式アプリ asks for nothing beyond the download.

Classic line 公式アプリ ships an update every 47 months, I Ching AI weekly. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Classic line 公式アプリ | I Ching AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/i-ching-ai/id6447413172/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 47 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 155 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MASAYUKI FUJISAWA](https://appshunter.io/developer/1448146395) | [QOOQ inc.](https://appshunter.io/developer/446639722) |

## What reviewers say

### Classic line 公式アプリ

[App page](https://appshunter.io/ios/app/classic-line/id1448146396)

**In-app purchases:** none


### I Ching AI

[App page](https://appshunter.io/ios/app/i-ching-ai/id6447413172)

This app offers AI-powered guidance based on the ancient I Ching philosophy. It helps users analyze complex situations, understand core tensions, and explore potential choices and next steps through structured readings. Conversations remain private and are not stored.

**Highlights:** AI-powered I Ching readings, Analysis of core tensions, Exploration of choices and implications, Plain language explanations of hexagrams, Preservation of traditional readings, Private and secure conversations

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Annual Plan | $49.99 | per year |
| additional tokens | $2.49 | one-time |
| additional tokens middle | $4.59 | one-time |
| additional tokens large | $8.99 | one-time |


## Frequently asked questions

### Is Classic line 公式アプリ free?

Classic line 公式アプリ is free to download, with no in-app purchases.

### Is I Ching AI free?

I Ching AI is free to download, with in-app purchases available.

### Do Classic line 公式アプリ or I Ching AI have ads?

Neither Classic line 公式アプリ nor I Ching AI shows ads.

### Which is updated more often, Classic line 公式アプリ or I Ching AI?

Classic line 公式アプリ ships an update every 47 months, and I Ching AI weekly. Most recently, Classic line 公式アプリ was updated on November 11, 2026 and I Ching AI on November 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*