# 天元烏兔萬年曆 vs 歷史上的今天：前事不忘，後事之師

The clearest difference is price: 歷史上的今天：前事不忘，後事之師 at Free against 天元烏兔萬年曆's $11.99. 天元烏兔萬年曆's advantage is in-app purchases (none vs 1) and iOS requirement (18.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

歷史上的今天：前事不忘，後事之師 is free to download; 天元烏兔萬年曆 costs $11.99 up front. 歷史上的今天：前事不忘，後事之師 sells 1 one-off in-app purchase. 天元烏兔萬年曆 asks for nothing beyond the download.

天元烏兔萬年曆 ships an update every 10 days, 歷史上的今天：前事不忘，後事之師 every 2 weeks. The most recent releases landed on November 6, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 天元烏兔萬年曆 | 歷史上的今天：前事不忘，後事之師 |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 123 MB | 36 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Firm 13 Limited](https://appshunter.io/developer/294205351) | [晶晶 殷](https://appshunter.io/developer/355709937) |

## What reviewers say

### 天元烏兔萬年曆

[App page](https://appshunter.io/ios/app/id344844888)

This app provides detailed traditional Chinese calendar information, including the Wu Tu Nine Stars, solar terms, and auspicious dates. It helps users plan important events by cross-referencing astrological data with weather forecasts and personal schedules.

**Highlights:** Wu Tu Nine Stars data (year, month, day, hour, direction), Auspicious and inauspicious date selection with summaries, Solar term timing and detailed changes, Public holiday display (China, HK, Taiwan, Singapore), Up to 10-day weather forecast integration, Personal schedule and reminder integration, Lunar and Gregorian date conversion (1850-2150)

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

**In-app purchases:** none


### 歷史上的今天：前事不忘，後事之師

[App page](https://appshunter.io/ios/app/id989675443)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 移除廣告 | $2.99 | one-time |


## Frequently asked questions

### Is 天元烏兔萬年曆 free?

天元烏兔萬年曆 costs $11.99, with no in-app purchases.

### Is 歷史上的今天：前事不忘，後事之師 free?

歷史上的今天：前事不忘，後事之師 is free to download, with in-app purchases available.

### Do 天元烏兔萬年曆 or 歷史上的今天：前事不忘，後事之師 have ads?

Neither 天元烏兔萬年曆 nor 歷史上的今天：前事不忘，後事之師 shows ads.

### Which is updated more often, 天元烏兔萬年曆 or 歷史上的今天：前事不忘，後事之師?

天元烏兔萬年曆 ships an update every 10 days, and 歷史上的今天：前事不忘，後事之師 every 2 weeks. Most recently, 天元烏兔萬年曆 was updated on November 6, 2026 and 歷史上的今天：前事不忘，後事之師 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.*