# 歷史上的今天：前事不忘，後事之師 vs 奇幻圖鑑

The clearest difference is in-app purchases: 奇幻圖鑑 at none against 歷史上的今天：前事不忘，後事之師's 1. 奇幻圖鑑 also leads on iOS requirement (17.2 vs 26.0). 歷史上的今天：前事不忘，後事之師's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. 歷史上的今天：前事不忘，後事之師 sells 1 one-off in-app purchase. 奇幻圖鑑 asks for nothing beyond the download.

歷史上的今天：前事不忘，後事之師 ships an update every 2 weeks, 奇幻圖鑑 every 9 days. The most recent releases landed on October 29, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 歷史上的今天：前事不忘，後事之師 | 奇幻圖鑑 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 36 MB | 166 MB |
| Requires iOS | 26.0 | **17.2** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [晶晶 殷](https://appshunter.io/developer/355709937) | [HIU WAI LIN](https://appshunter.io/developer/1368309222) |

## What reviewers say

### 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 |


### 奇幻圖鑑

[App page](https://appshunter.io/ios/app/id6736583095)

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

**In-app purchases:** none


## Frequently asked questions

### 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.

### Is 奇幻圖鑑 free?

奇幻圖鑑 is free to download, with no in-app purchases.

### Do 歷史上的今天：前事不忘，後事之師 or 奇幻圖鑑 have ads?

奇幻圖鑑 shows ads; 歷史上的今天：前事不忘，後事之師 does not.

### Which is updated more often, 歷史上的今天：前事不忘，後事之師 or 奇幻圖鑑?

歷史上的今天：前事不忘，後事之師 ships an update every 2 weeks, and 奇幻圖鑑 every 9 days. Most recently, 歷史上的今天：前事不忘，後事之師 was updated on October 29, 2026 and 奇幻圖鑑 on November 8, 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.*