# 八字 vs 寅沐易学

The clearest difference is in-app purchases: 八字 at none against 寅沐易学's 10. 八字 also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 寅沐易学 sells 9 one-off in-app purchases. 八字 asks for nothing beyond the download.

八字 ships an update every 3 weeks, 寅沐易学 every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 八字 | 寅沐易学 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6621189838/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 13 MB | 106 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [帅 李](https://appshunter.io/developer/1705660101) | [河北寅沐文化传播有限公司](https://appshunter.io/developer/1761935256) |

## What reviewers say

### 八字

[App page](https://appshunter.io/ios/app/id6464371895)

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

**In-app purchases:** none


### 寅沐易学

[App page](https://appshunter.io/ios/app/id6621189838)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 易豆充值 | $0.99 | one-time |
| 单条解锁 | $3.99 | one-time |
| 易豆充值 | $3.99 | one-time |
| 单条解锁 | $5.99 | one-time |
| 单条解锁 | $8.99 | one-time |
| 易豆充值 | $14.99 | one-time |
| 易豆充值 | $39.99 | one-time |
| 易豆充值 | $69.99 | one-time |
| 黄金会员5年卡 | $129.99 | one-time |


## Frequently asked questions

### Is 八字 free?

八字 is free to download, with no in-app purchases.

### Is 寅沐易学 free?

寅沐易学 is free to download, with in-app purchases available.

### Do 八字 or 寅沐易学 have ads?

Neither 八字 nor 寅沐易学 shows ads.

### Which is updated more often, 八字 or 寅沐易学?

八字 ships an update every 3 weeks, and 寅沐易学 every 2 months. Most recently, 八字 was updated on November 3, 2026 and 寅沐易学 on October 30, 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.*