# 星易斗数 vs 八字

The clearest difference is in-app purchases: 八字 at none against 星易斗数's 4. 星易斗数's advantage is update cadence (every 3 weeks vs every 5 weeks) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. 星易斗数 sells 4 one-off in-app purchases. 八字 asks for nothing beyond the download.

星易斗数 ships an update every 3 weeks, 八字 every 5 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 星易斗数 | 八字 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 33 MB | 12 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [志民 周](https://appshunter.io/developer/1689984538) | [帅 李](https://appshunter.io/developer/1705660101) |

## What reviewers say

### 星易斗数

[App page](https://appshunter.io/ios/app/id1437629375)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 按天购买 | $0.99 | one-time |
| 按周购买 | $1.99 | one-time |
| 按月购买 | $3.99 | one-time |
| 按年购买 | $17.99 | one-time |


### 八字

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 星易斗数 free?

星易斗数 is free to download, with in-app purchases available.

### Is 八字 free?

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

### Do 星易斗数 or 八字 have ads?

Neither 星易斗数 nor 八字 shows ads.

### Which is updated more often, 星易斗数 or 八字?

星易斗数 ships an update every 3 weeks, and 八字 every 5 weeks. Most recently, 星易斗数 was updated on October 7, 2026 and 八字 on October 14, 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.*