# 讀書小幫手 vs MistakeBook

The clearest difference is in-app purchases: 讀書小幫手 at none against MistakeBook's 1. 讀書小幫手 also leads on update cadence (daily vs every 2 weeks) and iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. MistakeBook sells 1 in-app purchase, starting at $0.99 per 6 months. 讀書小幫手 asks for nothing beyond the download.

讀書小幫手 ships an update daily, MistakeBook every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 讀書小幫手 | MistakeBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 37 MB | 72 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lichuan Cheng](https://appshunter.io/developer/1811966129) | [Wei Shuo Wu](https://appshunter.io/developer/527929940) |

## What reviewers say

### 讀書小幫手

[App page](https://appshunter.io/ios/app/id6746719832)

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

**In-app purchases:** none


### MistakeBook

[App page](https://appshunter.io/ios/app/mistakebook/id6757340127)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MistakeBook訂閱方案 | $0.99 | per 6 months |


## Frequently asked questions

### Is 讀書小幫手 free?

讀書小幫手 is free to download, with no in-app purchases.

### Is MistakeBook free?

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

### Do 讀書小幫手 or MistakeBook have ads?

Neither 讀書小幫手 nor MistakeBook shows ads.

### Which is updated more often, 讀書小幫手 or MistakeBook?

讀書小幫手 ships an update daily, and MistakeBook every 2 weeks. Most recently, 讀書小幫手 was updated on October 28, 2026 and MistakeBook 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.*