# 五運六氣 Pro vs 九天八字

The clearest difference is price: 九天八字 at Free against 五運六氣 Pro's $1.99. 九天八字 also leads on update cadence (weekly vs every 2 months). 五運六氣 Pro's advantage is iOS requirement (15.1 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

九天八字 is free to download; 五運六氣 Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

五運六氣 Pro ships an update every 2 months, 九天八字 weekly. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 五運六氣 Pro | 九天八字 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pro/id1454950835/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Paid | — |
| Size | 88 MB | 9 MB |
| Requires iOS | **15.1** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cheng-Ta Hsieh](https://appshunter.io/developer/1111361894) | [美薇 殷](https://appshunter.io/developer/1884920025) |

## What reviewers say

### 五運六氣 Pro

[App page](https://appshunter.io/ios/app/pro/id1454950835)

This app analyzes climate changes, biological processes, and disease outbreaks based on traditional Chinese theories like the Five Elements and Six Qi. The professional version also offers constitution and destiny analysis.

**Highlights:** Five Elements and Six Qi theory, Tian Gan Di Zhi symbols, Climate change inference, Biological process analysis, Disease outbreak prediction, Constitution analysis, Destiny analysis

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

**In-app purchases:** none


### 九天八字

[App page](https://appshunter.io/ios/app/id6761317780)

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

**In-app purchases:** none


## Frequently asked questions

### Is 五運六氣 Pro free?

五運六氣 Pro costs $1.99, with no in-app purchases.

### Is 九天八字 free?

九天八字 is free to download, with no in-app purchases.

### Do 五運六氣 Pro or 九天八字 have ads?

Neither 五運六氣 Pro nor 九天八字 shows ads.

### Which is updated more often, 五運六氣 Pro or 九天八字?

五運六氣 Pro ships an update every 2 months, and 九天八字 weekly. Most recently, 五運六氣 Pro was updated on October 13, 2026 and 九天八字 on October 9, 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.*