# Image PDF Maker vs 笔墨写作

The clearest difference is price: 笔墨写作 at Free against Image PDF Maker's $2.99. 笔墨写作 also leads on update cadence (every 2 weeks vs every 19 months) and iOS requirement (12.0 vs 14.0). Image PDF Maker's advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.

笔墨写作 is free to download; Image PDF Maker costs $2.99 up front. 笔墨写作 sells 10 one-off in-app purchases. Image PDF Maker asks for nothing beyond the download.

Image PDF Maker ships an update every 19 months, 笔墨写作 every 2 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Image PDF Maker | 笔墨写作 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deepseek-r1/id6502633871/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 38 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [永文 胡](https://appshunter.io/developer/804677583) | [北京质子跳动科技有限公司](https://appshunter.io/developer/1746266004) |

## What reviewers say

### Image PDF Maker

[App page](https://appshunter.io/ios/app/image-pdf-maker-image-to-pdf/id1625299399)

**Features:** macOS Compatibility

**In-app purchases:** none


### 笔墨写作

[App page](https://appshunter.io/ios/app/deepseek-r1/id6502633871)

This AI-powered writing assistant helps generate professional documents, academic papers, and lesson plans. It offers features for drafting, proofreading, and refining content for various professional and educational needs.

**Highlights:** AI-generated professional documents, Academic paper drafting and refinement, Teacher lesson plan creation, Inspiration and material library, Workplace document generation, AI-powered PPT creation

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月会员-双十一 | $6.99 | one-time |
| 1个月 | $9.99 | one-time |
| 3个月会员-双十一 | $14.99 | one-time |
| 六个月会员-双十一 | $22.99 | one-time |
| 3个月 | $22.99 | one-time |
| 十二个月会员-双十一 | $29.99 | one-time |
| 6个月 | $39.99 | one-time |
| 12个月会员-349 | $49.99 | one-time |
| 12个月会员 | $49.99 | one-time |
| 12个月 | $59.99 | one-time |


## Frequently asked questions

### Is Image PDF Maker free?

Image PDF Maker costs $2.99, with no in-app purchases.

### Is 笔墨写作 free?

笔墨写作 is free to download, with in-app purchases available.

### Do Image PDF Maker or 笔墨写作 have ads?

笔墨写作 shows ads; Image PDF Maker does not.

### Which is updated more often, Image PDF Maker or 笔墨写作?

Image PDF Maker ships an update every 19 months, and 笔墨写作 every 2 weeks. Most recently, Image PDF Maker was updated on November 7, 2026 and 笔墨写作 on October 30, 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.*