# 神奇門遁甲 vs 八字

The clearest difference is in-app purchases: 八字 at none against 神奇門遁甲's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 神奇門遁甲 sells 4 one-off in-app purchases. 八字 asks for nothing beyond the download.

神奇門遁甲 ships an update fortnightly, 八字 every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 神奇門遁甲 | 八字 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 24 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sam Tseng](https://appshunter.io/developer/368678561) | [帅 李](https://appshunter.io/developer/1705660101) |

## What reviewers say

### 神奇門遁甲

[App page](https://appshunter.io/ios/app/id1441287102)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 移除廣告 | $1.99 | one-time |
| 進階版羅盤 | $1.99 | one-time |
| 標四害一制 | $17.99 | one-time |
| 數字占進階版 | $25.99 | one-time |


### 八字

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 神奇門遁甲 free?

神奇門遁甲 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 神奇門遁甲 or 八字 have ads?

Neither 神奇門遁甲 nor 八字 shows ads.

### Which is updated more often, 神奇門遁甲 or 八字?

神奇門遁甲 ships an update fortnightly, and 八字 every 3 weeks. Most recently, 神奇門遁甲 was updated on November 2, 2026 and 八字 on November 3, 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.*