# 易经导航 HD vs Caigentan

The clearest difference is price: Caigentan at Free against 易经导航 HD's $4.99. Caigentan also leads on update cadence (every 4 days vs every 11 months). 易经导航 HD's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Caigentan is free to download; 易经导航 HD costs $4.99 up front. Caigentan sells 1 one-off in-app purchase. 易经导航 HD asks for nothing beyond the download.

易经导航 HD ships an update every 11 months, Caigentan every 4 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 易经导航 HD | Caigentan |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 9 MB | 167 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lingchen](https://appshunter.io/developer/490063568) | [zhenyu song](https://appshunter.io/developer/1721282851) |

## What reviewers say

### 易经导航 HD

[App page](https://appshunter.io/ios/app/hd/id534524272)

Learn the I Ching with guided lessons and practice exercises. This app helps you understand卦象, 卦辞, and 爻辞 to broaden your perspective and increase wisdom. It also offers divination features to aid in rational decision-making and navigating life's challenges.

**Highlights:** Learn I Ching principles, Practice卦象, 卦辞, 爻辞, Expand perspective and wisdom, I Ching divination for guidance, Rational decision-making aid, Includes 焦氏易林

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Caigentan

[App page](https://appshunter.io/ios/app/caigentan-chinese-wisdom/id6760556805)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is 易经导航 HD free?

易经导航 HD costs $4.99, with no in-app purchases.

### Is Caigentan free?

Caigentan is free to download, with in-app purchases available.

### Do 易经导航 HD or Caigentan have ads?

Caigentan shows ads; 易经导航 HD does not.

### Which is updated more often, 易经导航 HD or Caigentan?

易经导航 HD ships an update every 11 months, and Caigentan every 4 days. Most recently, 易经导航 HD was updated on October 22, 2026 and Caigentan on October 24, 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.*