# 笔神作文批改教师版 vs 万能工作水印相机

The clearest difference is update cadence: 万能工作水印相机 at every 4 days against 笔神作文批改教师版's monthly. 笔神作文批改教师版's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 笔神作文批改教师版 sells 2 one-off in-app purchases and 万能工作水印相机 sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

笔神作文批改教师版 ships an update monthly, 万能工作水印相机 every 4 days. The most recent releases landed on October 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 笔神作文批改教师版 | 万能工作水印相机 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 71 MB | 36 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [One Pen Sci-tech Co., Ltd.](https://appshunter.io/developer/1498880039) | [汶锦 郭](https://appshunter.io/developer/1770781884) |

## What reviewers say

### 笔神作文批改教师版

[App page](https://appshunter.io/ios/app/ai/id6749288364)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI辅导1月会员 | $2.99 | one-time |
| AI辅导一年会员 | $24.99 | one-time |


### 万能工作水印相机

[App page](https://appshunter.io/ios/app/id6760457972)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $4.99 | per 7 days |
| 季度会员 | $9.99 | per 3 months |
| 永久会员 | $22.99 | one-time |
| 永久会员 | $39.99 | one-time |


## Frequently asked questions

### Is 笔神作文批改教师版 free?

笔神作文批改教师版 is free to download, with in-app purchases available.

### Is 万能工作水印相机 free?

万能工作水印相机 is free to download, with in-app purchases available.

### Do 笔神作文批改教师版 or 万能工作水印相机 have ads?

Neither 笔神作文批改教师版 nor 万能工作水印相机 shows ads.

### Which is updated more often, 笔神作文批改教师版 or 万能工作水印相机?

笔神作文批改教师版 ships an update monthly, and 万能工作水印相机 every 4 days. Most recently, 笔神作文批改教师版 was updated on October 19, 2026 and 万能工作水印相机 on September 9, 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.*