# 错题本 vs 工时记录记加班

The clearest difference is in-app purchases: 工时记录记加班 at none against 错题本's 2. 错题本's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 错题本 sells 2 in-app purchases, starting at $1.99 per month. 工时记录记加班 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 16, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 错题本 | 工时记录记加班 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/id6448860597/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | — |
| Size | 46 MB | 113 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市美易网科技有限公司](https://appshunter.io/developer/1647736306) | [Qun Cao](https://appshunter.io/developer/1655069600) |

## What reviewers say

### 错题本

[App page](https://appshunter.io/ios/app/id6448860597)

This learning tool helps students and parents efficiently manage incorrect answers from homework and tests. It uses advanced technology to quickly capture, organize, and review mistakes, making studying smarter and more effective.

**Highlights:** Photo capture of incorrect answers, Automatic removal of handwriting, Subject-based categorization, Detailed breakdown of questions and solutions, Custom practice test generation, Daily review for targeted learning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $1.99 | per month |
| 连续包年 | $9.99 | per year |


### 工时记录记加班

[App page](https://appshunter.io/ios/app/id6774899763)

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

**In-app purchases:** none


## Frequently asked questions

### Is 错题本 free?

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

### Is 工时记录记加班 free?

工时记录记加班 is free to download, with no in-app purchases.

### Do 错题本 or 工时记录记加班 have ads?

工时记录记加班 shows ads; 错题本 does not.

### Which is updated more often, 错题本 or 工时记录记加班?

错题本 ships an update every 2 months, and 工时记录记加班 every 2 months. Most recently, 错题本 was updated on October 16, 2026 and 工时记录记加班 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.*