# PDF转换器 vs CAD转换器

The clearest difference is rating: PDF转换器 at 5.0 against CAD转换器's 2.4. PDF转换器 also leads on review sentiment (54% vs 22%). CAD转换器's advantage is monetization model (free vs freemium) and ratings volume (22 vs 2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. PDF转换器 sells 12 in-app purchases, starting at $6.99 per 7 days and CAD转换器 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDF转换器 holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: CAD转换器 has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 54% of PDF转换器's written reviews are positive against 22% of CAD转换器's.

PDF转换器 ships an update fortnightly, CAD转换器 every 2 weeks. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | PDF转换器 | CAD转换器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-pdf/id1661313008/reviews)** | [2.4 (22 ratings)](https://appshunter.io/ios/app/cad-pdfcad/id6444785249/reviews) |
| Number of ratings | 2 | **22** |
| Positive reviews | **53.8% of reviews** | 22.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Freemium | **Free** |
| Size | 81 MB | 88 MB |
| Requires iOS | 12 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [习美 鄢](https://appshunter.io/developer/1649179748) | [Xiamen Yinleme Information Technology Co., Ltd](https://appshunter.io/developer/1502666205) |

## What reviewers say

### PDF转换器

[App page](https://appshunter.io/ios/app/pdf-pdf/id1661313008)

This app offers versatile document conversion and management tools for mobile users. Easily transform over 10 file formats, including PDF to Word, Excel, and images, and vice versa. It also provides features for merging, splitting, securing, and scanning documents.

**Highlights:** 10+ format conversions, PDF to Word, Excel, PPT, Image to PDF, PDF merging and splitting, Watermark and password protection, Cloud document sync, Mobile scanning

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 超值周会员 | $6.99 | per 7 days |
| 周会员 | $6.99 | per 7 days |
| 3天免费试用 | $6.99 | per 7 days |
| 包周服务 | $6.99 | per 7 days |
| 超值包年服务 | $12.99 | per year |
| 包周会员 | $12.99 | per 7 days |
| 包月会员 | $19.99 | per month |
| 包年会员 | $24.99 | per year |
| 年会员 | $29.99 | per year |
| 包年服务 | $39.99 | per year |
| 永久终生会员 | $14.99 | one-time |
| 永久会员 | $24.99 | one-time |


### CAD转换器

[App page](https://appshunter.io/ios/app/cad-pdfcad/id6444785249)

This app offers a comprehensive suite of file conversion tools, specializing in CAD formats and also supporting PDF, Word, Excel, and image conversions. It also includes features for file compression and PDF manipulation like merging and splitting.

**Highlights:** CAD to PDF conversion, PDF to CAD conversion, Multiple document format conversions, File compression, PDF merging and splitting, Watermarking and encryption

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $3.99 | one-time |
| 月度会员 | $3.99 | one-time |
| 年度会员 | $7.99 | one-time |
| 超级会员 | $9.99 | one-time |
| 一年会员 | $9.99 | one-time |
| 两年会员 | $14.99 | one-time |


## Frequently asked questions

### Is PDF转换器 free?

PDF转换器 is free to download, with in-app purchases available.

### Is CAD转换器 free?

CAD转换器 is free to download, with in-app purchases available.

### Which has better reviews, PDF转换器 or CAD转换器?

PDF转换器 is rated higher. PDF转换器 averages 5.0 out of 5 from 2 ratings, while CAD转换器 averages 2.4 from 22 ratings.

### Which is updated more often, PDF转换器 or CAD转换器?

PDF转换器 ships an update fortnightly, and CAD转换器 every 2 weeks. Most recently, PDF转换器 was updated on September 21, 2026 and CAD转换器 on September 16, 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.*