# 背考王小四门 vs 海豚MBA

The clearest difference is update cadence: 海豚MBA at every 2 weeks against 背考王小四门's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 背考王小四门 sells 1 one-off in-app purchase and 海豚MBA sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

背考王小四门 ships an update every 3 months, 海豚MBA every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | 背考王小四门 | 海豚MBA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 113 MB | 138 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Kaoba Education Technology Co., Ltd](https://appshunter.io/developer/1590959880) | [西安必鸣教育科技有限公司](https://appshunter.io/developer/6788360717) |

## What reviewers say

### 背考王小四门

[App page](https://appshunter.io/ios/app/id6757467909)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 背考王小四门会员 | $19.99 | one-time |


### 海豚MBA

[App page](https://appshunter.io/ios/app/mba/id6788360715)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 99元课程 | $14.99 | one-time |
| 199元课程 | $29.99 | one-time |
| 399元课程 | $59.99 | one-time |
| 599元课程 | $89.99 | one-time |
| 999元课程 | $149.99 | one-time |


## Frequently asked questions

### Is 背考王小四门 free?

背考王小四门 is free to download, with in-app purchases available.

### Is 海豚MBA free?

海豚MBA is free to download, with in-app purchases available.

### Do 背考王小四门 or 海豚MBA have ads?

Neither 背考王小四门 nor 海豚MBA shows ads.

### Which is updated more often, 背考王小四门 or 海豚MBA?

背考王小四门 ships an update every 3 months, and 海豚MBA every 2 weeks. Most recently, 背考王小四门 was updated on October 31, 2026 and 海豚MBA on October 31, 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.*