# 当火车鸣笛三秒 vs 汉字的密室

The clearest difference is rating: 汉字的密室 at 5.0 against 当火车鸣笛三秒's 2.5. 汉字的密室 also leads on review sentiment (100% vs 81%). 当火车鸣笛三秒's advantage is ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

汉字的密室 holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 81% of 当火车鸣笛三秒's written reviews are positive against 100% of 汉字的密室's.

当火车鸣笛三秒 ships an update monthly, 汉字的密室 every 2 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 当火车鸣笛三秒 | 汉字的密室 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/id1592834113/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6466408363/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 81.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Size | 673 MB | 23 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [欢 刘](https://appshunter.io/developer/1334601605) | [俊颖 张](https://appshunter.io/developer/1661099011) |

## What reviewers say

### 当火车鸣笛三秒

[App page](https://appshunter.io/ios/app/id1592834113)

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

**In-app purchases:** none


### 汉字的密室

[App page](https://appshunter.io/ios/app/id6466408363)

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

**In-app purchases:** none


## Frequently asked questions

### Is 当火车鸣笛三秒 free?

当火车鸣笛三秒 is free to download, with no in-app purchases.

### Is 汉字的密室 free?

汉字的密室 is free to download, with no in-app purchases.

### Which has better reviews, 当火车鸣笛三秒 or 汉字的密室?

汉字的密室 is rated higher. 当火车鸣笛三秒 averages 2.5 out of 5 from 2 ratings, while 汉字的密室 averages 5.0 from 1 ratings.

### Do 当火车鸣笛三秒 or 汉字的密室 have ads?

汉字的密室 shows ads; 当火车鸣笛三秒 does not.

### Which is updated more often, 当火车鸣笛三秒 or 汉字的密室?

当火车鸣笛三秒 ships an update monthly, and 汉字的密室 every 2 months. Most recently, 当火车鸣笛三秒 was updated on October 30, 2026 and 汉字的密室 on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*