# 磁博士 vs 纠错大师

The clearest difference is in-app purchases: 纠错大师 at none against 磁博士's 10. 纠错大师 also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. 磁博士 sells 10 one-off in-app purchases. 纠错大师 asks for nothing beyond the download.

## The numbers

| Metric | 磁博士 | 纠错大师 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 45 MB | 99 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Henan Teweitu Network Technology Co. LTD](https://appshunter.io/developer/1656480762) | [杭州扶志科技有限公司](https://appshunter.io/developer/1651860833) |

## What reviewers say

### 磁博士

[App page](https://appshunter.io/ios/app/id1658454416)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 实时录音1小时 | $0.99 | one-time |
| 实时录音3小时 | $0.99 | one-time |
| 实时录音5小时 | $0.99 | one-time |
| 智能问答3次 | $0.99 | one-time |
| 实时录音10小时 | $2.99 | one-time |
| 智能问答10次 | $2.99 | one-time |
| 半年卡 | $6.99 | one-time |
| 年卡 | $9.99 | one-time |
| 50次智能问答 | $14.99 | one-time |
| 100次智能问答 | $24.99 | 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 磁博士 free?

磁博士 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.

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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.*