# 易爻 vs 紫微通書

The clearest difference is rating: 紫微通書 at 5.0 against 易爻's 2.3. 紫微通書 also leads on ads (none vs shown) and review sentiment (50% vs 42%). 易爻's advantage is in-app purchases (none vs 5). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. 紫微通書 sells 5 one-off in-app purchases. 易爻 asks for nothing beyond the download.

紫微通書 holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 42% of 易爻's written reviews are positive against 50% of 紫微通書's.

易爻 ships an update every 2 months, 紫微通書 every 4 weeks. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 易爻 | 紫微通書 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/id586220860/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id6443444483/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 42.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Ad-supported | — |
| Size | 42 MB | 128 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [健 杨](https://appshunter.io/developer/463198144) | [Shenzhen Tianxun Culture Technology Co.,Ltd.](https://appshunter.io/developer/1643867629) |

## What reviewers say

### 易爻

[App page](https://appshunter.io/ios/app/id586220860)

This app uses I Ching mathematics for divination, offering multiple methods for generating hexagrams and predictions. It provides detailed analysis of卦象, elemental relationships, and astrological information for astrological readings. Users can save and export data, with support for simplified and traditional Chinese.

**Highlights:** Multiple hexagram generation methods, Detailed hexagram analysis, Five element and astrological readings, Save and export data, Simplified/Traditional Chinese support, Helpful reference information

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

**In-app purchases:** none


### 紫微通書

[App page](https://appshunter.io/ios/app/id6443444483)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A项购买 | $6.99 | one-time |
| B项购买 | $19.99 | one-time |
| C项购买 | $29.99 | one-time |
| D项购买 | $59.99 | one-time |
| VIP购买 | $99.99 | one-time |


## Frequently asked questions

### Is 易爻 free?

易爻 is free to download, with no in-app purchases.

### Is 紫微通書 free?

紫微通書 is free to download, with in-app purchases available.

### Which has better reviews, 易爻 or 紫微通書?

紫微通書 is rated higher. 易爻 averages 2.3 out of 5 from 3 ratings, while 紫微通書 averages 5.0 from 4 ratings.

### Do 易爻 or 紫微通書 have ads?

易爻 shows ads; 紫微通書 does not.

### Which is updated more often, 易爻 or 紫微通書?

易爻 ships an update every 2 months, and 紫微通書 every 4 weeks. Most recently, 易爻 was updated on October 23, 2026 and 紫微通書 on October 27, 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.*