# 7788收藏 vs CAD转换器

The clearest difference is in-app purchases: 7788收藏 at none against CAD转换器's 6. CAD转换器's advantage is update cadence (every 2 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. CAD转换器 sells 6 one-off in-app purchases. 7788收藏 asks for nothing beyond the download.

7788收藏 ships an update every 2 months, CAD转换器 every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 7788收藏 | CAD转换器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (22 ratings)](https://appshunter.io/ios/app/cad-pdfcad/id6444785249/reviews)** |
| Number of ratings | — | **22** |
| Positive reviews | — | 22.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | — |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 155 MB | 88 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [997788](https://appshunter.io/developer/740386403) | [Xiamen Yinleme Information Technology Co., Ltd](https://appshunter.io/developer/1502666205) |

## What reviewers say

### 7788收藏

[App page](https://appshunter.io/ios/app/7788/id875713026)

**Features:** Vision Pro support

**In-app purchases:** none


### 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 7788收藏 free?

7788收藏 is free to download, with no in-app purchases.

### Is CAD转换器 free?

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

### Which is updated more often, 7788收藏 or CAD转换器?

7788收藏 ships an update every 2 months, and CAD转换器 every 2 weeks. Most recently, 7788收藏 was updated on October 24, 2026 and CAD转换器 on October 20, 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.*