# N4 読解問題集 vs UTaipei行動圖書館

The clearest difference is price: UTaipei行動圖書館 at Free against N4 読解問題集's $9.99. UTaipei行動圖書館 also leads on iOS requirement (11.0 vs 17.2). On update cadence, ads, in-app purchases and device support there is nothing between them.

UTaipei行動圖書館 is free to download; N4 読解問題集 costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

N4 読解問題集 ships an update every 21 months, UTaipei行動圖書館 every 18 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | N4 読解問題集 | UTaipei行動圖書館 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 18 months** |
| Size | 2 MB | 21 MB |
| Requires iOS | 17.2 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Yamase & Touwa Japanese Insititute](https://appshunter.io/developer/442115304) | [凌網科技股份有限公司, Hyweb Technology Co., Ltd.](https://appshunter.io/developer/419081258) |

## What reviewers say

### N4 読解問題集

[App page](https://appshunter.io/ios/app/n4/id654088367)

**Features:** Vision Pro support

**In-app purchases:** none


### UTaipei行動圖書館

[App page](https://appshunter.io/ios/app/utaipei/id905854374)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is N4 読解問題集 free?

N4 読解問題集 costs $9.99, with no in-app purchases.

### Is UTaipei行動圖書館 free?

UTaipei行動圖書館 is free to download, with no in-app purchases.

### Do N4 読解問題集 or UTaipei行動圖書館 have ads?

Neither N4 読解問題集 nor UTaipei行動圖書館 shows ads.

### Which is updated more often, N4 読解問題集 or UTaipei行動圖書館?

N4 読解問題集 ships an update every 21 months, and UTaipei行動圖書館 every 18 months. Most recently, N4 読解問題集 was updated on October 29, 2026 and UTaipei行動圖書館 on October 26, 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.*