# 智伴错题打印 vs iFellowU

The clearest difference is update cadence: iFellowU at every 6 days against 智伴错题打印's monthly. 智伴错题打印's advantage is iOS requirement (10.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

智伴错题打印 ships an update monthly, iFellowU every 6 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 智伴错题打印 | iFellowU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Size | 78 MB | 222 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Zhiban Technology Co., Ltd.](https://appshunter.io/developer/1306670336) | [Hefei Jiuyu Wonton Technology Co., Ltd](https://appshunter.io/developer/1868267719) |

## What reviewers say

### 智伴错题打印

[App page](https://appshunter.io/ios/app/id1548639200)

**Features:** macOS Compatibility

**In-app purchases:** none


### iFellowU

[App page](https://appshunter.io/ios/app/ifellowu-study-smarter/id6757684258)

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

**In-app purchases:** none


## Frequently asked questions

### Is 智伴错题打印 free?

智伴错题打印 is free to download, with no in-app purchases.

### Is iFellowU free?

iFellowU is free to download, with no in-app purchases.

### Do 智伴错题打印 or iFellowU have ads?

Neither 智伴错题打印 nor iFellowU shows ads.

### Which is updated more often, 智伴错题打印 or iFellowU?

智伴错题打印 ships an update monthly, and iFellowU every 6 days. Most recently, 智伴错题打印 was updated on October 29, 2026 and iFellowU 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.*