# 斑布牛牛 vs 错题本·学伴

The clearest difference is device support: 斑布牛牛 at 3 against 错题本·学伴's —. 斑布牛牛 also leads on iOS requirement (12.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. 斑布牛牛 sells 6 one-off in-app purchases and 错题本·学伴 sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 斑布牛牛 | 错题本·学伴 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1638035811/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Size | 52 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Pengzhi Educational Technology Shenzhen Co.,Ltd](https://appshunter.io/developer/1638035813) | [大勇 阎](https://appshunter.io/developer/1068052430) |

## What reviewers say

### 斑布牛牛

[App page](https://appshunter.io/ios/app/id1638035811)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 斑布牛牛数学-1个月基础会员 | $5.99 | one-time |
| 斑布牛牛数学-1个月超级会员 | $12.99 | one-time |
| 斑布牛牛数学-3个月基础会员 | $19.99 | one-time |
| 斑布牛牛数学-6个月基础会员 | $29.99 | one-time |
| 斑布牛牛数学-1年VIP会员 | $199.99 | one-time |
| 斑布牛牛数学-2年VIP会员 | $399.99 | one-time |


### 错题本·学伴

[App page](https://appshunter.io/ios/app/id6448768023)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包月 | $2.99 | per month |
| 包年 | $24.99 | per year |


## Frequently asked questions

### Is 斑布牛牛 free?

斑布牛牛 is free to download, with in-app purchases available.

### Is 错题本·学伴 free?

错题本·学伴 is free to download, with in-app purchases available.

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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.*