# 错题帮打印机 vs 小牛错题本

The clearest difference is in-app purchases: 错题帮打印机 at none against 小牛错题本's 4. 错题帮打印机 also leads on iOS requirement (10.0 vs 12.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 小牛错题本 sells 4 in-app purchases, starting at $2.99 per month. 错题帮打印机 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 错题帮打印机 | 小牛错题本 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 16 MB | 105 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chuan Thinks Technology Limited](https://appshunter.io/developer/1568971194) | [深圳市云领天下科技有限公司](https://appshunter.io/developer/725440563) |

## What reviewers say

### 错题帮打印机

[App page](https://appshunter.io/ios/app/id1539097022)

**In-app purchases:** none


### 小牛错题本

[App page](https://appshunter.io/ios/app/id6474232623)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小牛错题本连续包月（1个月） | $2.99 | per month |
| 小牛错题本连续包季（3个月） | $5.99 | per 3 months |
| 小牛错题本会员1个月 | $3.99 | one-time |
| 小牛错题本会员6个月 | $14.99 | one-time |


## Frequently asked questions

### Is 错题帮打印机 free?

错题帮打印机 is free to download, with no in-app purchases.

### Is 小牛错题本 free?

小牛错题本 is free to download, with in-app purchases available.

### Do 错题帮打印机 or 小牛错题本 have ads?

Neither 错题帮打印机 nor 小牛错题本 shows ads.

### Which is updated more often, 错题帮打印机 or 小牛错题本?

错题帮打印机 ships an update monthly, and 小牛错题本 monthly. Most recently, 错题帮打印机 was updated on November 7, 2026 and 小牛错题本 on November 4, 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.*