# 纠错大师 vs 记课时

The clearest difference is in-app purchases: 纠错大师 at none against 记课时's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 记课时 sells 3 in-app purchases, starting at $0.99 per month. 纠错大师 asks for nothing beyond the download.

纠错大师 ships an update every 3 weeks, 记课时 every 5 weeks. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 纠错大师 | 记课时 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (8 ratings)](https://appshunter.io/ios/app/id6451461673/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Freemium |
| Size | 99 MB | 7 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杭州扶志科技有限公司](https://appshunter.io/developer/1651860833) | [海云 吴](https://appshunter.io/developer/1078143101) |

## What reviewers say

### 纠错大师

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

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

**In-app purchases:** none


### 记课时

[App page](https://appshunter.io/ios/app/id6451461673)

Manage interest class schedules and student attendance with features like group management, course scheduling, payment tracking, and attendance recording. Offers real-time statistics, class reminders, and data export options. Supports iCloud backup and recovery.

**Highlights:** Group and course management, Payment tracking and remaining class calculation, One-click attendance recording, Real-time statistics and reports, Class reminders, iCloud backup and export (Excel/PDF)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| APP Monthly subscription | $0.99 | per month |
| APP Yearly subscription | $2.99 | per year |
| 记课时专业版 | $3.99 | one-time |


## Frequently asked questions

### Is 纠错大师 free?

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

### Is 记课时 free?

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

### Do 纠错大师 or 记课时 have ads?

Neither 纠错大师 nor 记课时 shows ads.

### Which is updated more often, 纠错大师 or 记课时?

纠错大师 ships an update every 3 weeks, and 记课时 every 5 weeks. Most recently, 纠错大师 was updated on October 21, 2026 and 记课时 on October 10, 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.*