# 4D书城 vs 海豚儿童英语

4D书城 and 海豚儿童英语 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 4D书城 sells 10 in-app purchases, starting at $2.49 per month and 海豚儿童英语 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

4D书城 ships an update every 4 weeks, 海豚儿童英语 every 3 weeks. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 4D书城 | 海豚儿童英语 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (10 ratings)](https://appshunter.io/ios/app/4d/id842495919/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 319 MB | 119 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Suzhou MXR Software Technology Co.,Ltd](https://appshunter.io/developer/484812886) | [海豚传媒股份有限公司](https://appshunter.io/developer/1223931014) |

## What reviewers say

### 4D书城

[App page](https://appshunter.io/ios/app/4d/id842495919)

This platform uses augmented and virtual reality to bring educational content to life for children. Users can scan book pages to see dinosaurs, vehicles, and the human body appear in 3D, making learning interactive and engaging.

**Highlights:** Augmented and Virtual Reality integration, Interactive 3D models of dinosaurs, vehicles, and anatomy, Syncs with mainstream textbooks, Access to over 8000 authorized 4D books, Includes stories, journals, and quizzes, Automatic renewal subscription options

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly-renewal VIP | $2.49 | per month |
| Monthly-renewal VIP | $3.49 | per month |
| Quarter-renewal VIP | $6.99 | per 3 months |
| Annually-renewal VIP | $24.99 | per year |
| 6元礼包 | $0.99 | one-time |
| 梦想钻礼包(梦想钻x30) | $4.99 | one-time |
| 梦想钻礼包(梦想钻x60) | $8.99 | one-time |
| 梦想钻礼包(梦想钻x128) | $19.99 | one-time |
| 梦想钻礼包（梦想钻x418） | $64.99 | one-time |
| 梦想钻礼包(梦想钻x518) | $79.99 | one-time |


### 海豚儿童英语

[App page](https://appshunter.io/ios/app/id1444562862)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 伴读课 | $4.99 | one-time |
| 童谣课 | $14.99 | one-time |
| 预备级精读课 | $46.99 | one-time |
| 培生幼儿英语基础词汇课 | $74.99 | one-time |


## Frequently asked questions

### Is 4D书城 free?

4D书城 is free to download, with in-app purchases available.

### Is 海豚儿童英语 free?

海豚儿童英语 is free to download, with in-app purchases available.

### Do 4D书城 or 海豚儿童英语 have ads?

Neither 4D书城 nor 海豚儿童英语 shows ads.

### Which is updated more often, 4D书城 or 海豚儿童英语?

4D书城 ships an update every 4 weeks, and 海豚儿童英语 every 3 weeks. Most recently, 4D书城 was updated on October 24, 2026 and 海豚儿童英语 on October 11, 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.*