# Luopan Placement Ruler vs 南半球萬年曆

The clearest difference is review sentiment: Luopan Placement Ruler at 45% against 南半球萬年曆's 0%. Luopan Placement Ruler also leads on update cadence (every 3 days vs every 7 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Luopan Placement Ruler sells 1 one-off in-app purchase and 南半球萬年曆 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Luopan Placement Ruler ships an update every 3 days, 南半球萬年曆 every 7 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Luopan Placement Ruler | 南半球萬年曆 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **45.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 7 months |
| Size | 413 MB | 63 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHEUNG PUI MAN](https://appshunter.io/developer/291179028) | [amtb fate](https://appshunter.io/developer/430174936) |

## What reviewers say

### Luopan Placement Ruler

[App page](https://appshunter.io/ios/app/luopan-placement-ruler/id412370642)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 数据无限保存 | $19.99 | one-time |


### 南半球萬年曆

[App page](https://appshunter.io/ios/app/id1317522902)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 移除廣告 | $2.99 | one-time |
| 啟用萬年曆年份1600年～2000年 | $9.99 | one-time |


## Frequently asked questions

### Is Luopan Placement Ruler free?

Luopan Placement Ruler is free to download, with in-app purchases available.

### Is 南半球萬年曆 free?

南半球萬年曆 is free to download, with in-app purchases available.

### Do Luopan Placement Ruler or 南半球萬年曆 have ads?

Neither Luopan Placement Ruler nor 南半球萬年曆 shows ads.

### Which is updated more often, Luopan Placement Ruler or 南半球萬年曆?

Luopan Placement Ruler ships an update every 3 days, and 南半球萬年曆 every 7 months. Most recently, Luopan Placement Ruler was updated on November 1, 2026 and 南半球萬年曆 on October 29, 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.*