# 初中数学 vs 纠错大师

The clearest difference is in-app purchases: 纠错大师 at none against 初中数学's 1. 纠错大师 also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 初中数学 sells 1 one-off in-app purchase. 纠错大师 asks for nothing beyond the download.

初中数学 ships an update every 2 months, 纠错大师 fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | 初中数学 | 纠错大师 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/id1590959878/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 216 MB | 99 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Kaoba Education Technology Co., Ltd](https://appshunter.io/developer/1590959880) | [杭州扶志科技有限公司](https://appshunter.io/developer/1651860833) |

## What reviewers say

### 初中数学

[App page](https://appshunter.io/ios/app/id1590959878)

This app provides a smart learning assistant for junior high school mathematics, offering a vast question bank and synchronized textbook content. It helps students review independently, reduces homework burden, and simplifies exam preparation for both students and parents.

**Highlights:** Smart error correction and problem summarization, Synchronized textbook and chapter content, Extensive question bank from past exams and top schools, Formula大全 for quick reference, Independent review and self-study support, Reduces homework burden

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 数学会员 | $1.99 | one-time |


### 纠错大师

[App page](https://appshunter.io/ios/app/ai/id6444046564)

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

**In-app purchases:** none


## Frequently asked questions

### Is 初中数学 free?

初中数学 is free to download, with in-app purchases available.

### Is 纠错大师 free?

纠错大师 is free to download, with no in-app purchases.

### Do 初中数学 or 纠错大师 have ads?

Neither 初中数学 nor 纠错大师 shows ads.

### Which is updated more often, 初中数学 or 纠错大师?

初中数学 ships an update every 2 months, and 纠错大师 fortnightly. Most recently, 初中数学 was updated on November 3, 2026 and 纠错大师 on November 3, 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.*