# 四级听力 vs 中文在线数字图书馆V2

The clearest difference is update cadence: 中文在线数字图书馆V2 at every 2 months against 四级听力's every 20 months. 四级听力's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

四级听力 ships an update every 20 months, 中文在线数字图书馆V2 every 2 months. The most recent releases landed on September 27, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 四级听力 | 中文在线数字图书馆V2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/4/id1125407565/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 120 MB | 66 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yuanlai Infomation Technology Co., Ltd.](https://appshunter.io/developer/958193889) | [湖北中文在线数字出版有限公司](https://appshunter.io/developer/1809734912) |

## What reviewers say

### 四级听力

[App page](https://appshunter.io/ios/app/4/id1125407565)

This app provides extensive practice materials for the College English Test Band 4 (CET-4) listening section. It features past exam papers to help users improve their listening comprehension for various English proficiency tests and self-study.

**Highlights:** CET-4 listening practice, Past exam papers, Improve listening comprehension, TOEFL and IELTS preparation, Self-study resource

**Features:** macOS Compatibility

**In-app purchases:** none


### 中文在线数字图书馆V2

[App page](https://appshunter.io/ios/app/v2/id1209929813)

Access a vast digital library with diverse content including educational materials, science, picture books, and comics. This updated version offers a more powerful, visually appealing, and interactive user experience for readers of all ages.

**Highlights:** Extensive digital content library, Cultural and educational materials, Science and encyclopedia resources, Picture books and comics, User-friendly interface, Interactive features

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 四级听力 free?

四级听力 is free to download, with no in-app purchases.

### Is 中文在线数字图书馆V2 free?

中文在线数字图书馆V2 is free to download, with no in-app purchases.

### Do 四级听力 or 中文在线数字图书馆V2 have ads?

Neither 四级听力 nor 中文在线数字图书馆V2 shows ads.

### Which is updated more often, 四级听力 or 中文在线数字图书馆V2?

四级听力 ships an update every 20 months, and 中文在线数字图书馆V2 every 2 months. Most recently, 四级听力 was updated on September 27, 2026 and 中文在线数字图书馆V2 on October 1, 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.*