# 企业动力云4.0 vs 错题本

The clearest difference is in-app purchases: 企业动力云4.0 at none against 错题本's 2. 企业动力云4.0 also leads on update cadence (monthly vs every 2 months). 错题本's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. 错题本 sells 2 in-app purchases, starting at $1.99 per month. 企业动力云4.0 asks for nothing beyond the download.

企业动力云4.0 ships an update monthly, 错题本 every 2 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 企业动力云4.0 | 错题本 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/id6448860597/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Freemium |
| Size | 38 MB | 46 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Dongxinda Computer Technology Development Co., Ltd](https://appshunter.io/developer/1260538602) | [深圳市美易网科技有限公司](https://appshunter.io/developer/1647736306) |

## What reviewers say

### 企业动力云4.0

[App page](https://appshunter.io/ios/app/40/id1612173769)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 企业动力云4.0 free?

企业动力云4.0 is free to download, with no in-app purchases.

### Is 错题本 free?

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

### Do 企业动力云4.0 or 错题本 have ads?

Neither 企业动力云4.0 nor 错题本 shows ads.

### Which is updated more often, 企业动力云4.0 or 错题本?

企业动力云4.0 ships an update monthly, and 错题本 every 2 months. Most recently, 企业动力云4.0 was updated on October 7, 2026 and 错题本 on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*