# 纠错大师 vs 爱普生打印机

The clearest difference is in-app purchases: 纠错大师 at none against 爱普生打印机's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 爱普生打印机 sells 4 in-app purchases, starting at $0.99 per 7 days. 纠错大师 asks for nothing beyond the download.

纠错大师 ships an update fortnightly, 爱普生打印机 every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 纠错大师 | 爱普生打印机 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Size | 99 MB | 2 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杭州扶志科技有限公司](https://appshunter.io/developer/1651860833) | [河壬 郝](https://appshunter.io/developer/1624488887) |

## 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


### 爱普生打印机

[App page](https://appshunter.io/ios/app/wifi/id6776669994)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $0.99 | per 7 days |
| 月会员 | $1.99 | per month |
| 月畅想 | $2.99 | per month |
| 终身会员 | $12.99 | 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 爱普生打印机 free?

爱普生打印机 is free to download, with in-app purchases available.

### Do 纠错大师 or 爱普生打印机 have ads?

Neither 纠错大师 nor 爱普生打印机 shows ads.

### Which is updated more often, 纠错大师 or 爱普生打印机?

纠错大师 ships an update fortnightly, and 爱普生打印机 every 10 days. Most recently, 纠错大师 was updated on November 3, 2026 and 爱普生打印机 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.*