# 啄木工程 vs CAD快速看图

The clearest difference is update cadence: CAD快速看图 at daily against 啄木工程's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 啄木工程 sells 4 in-app purchases, starting at $3.99 per month and CAD快速看图 sells 5 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

啄木工程 ships an update every 4 months, CAD快速看图 daily. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 啄木工程 | CAD快速看图 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cad-cadpdf/id6740514839/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | — | Freemium |
| Size | 47 MB | 30 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [秀英 胡](https://appshunter.io/developer/1705825419) | [雪 吴](https://appshunter.io/developer/1550725669) |

## What reviewers say

### 啄木工程

[App page](https://appshunter.io/ios/app/cad/id1612999168)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $3.99 | per month |
| 季度会员 | $39.99 | per 3 months |
| 周会员 | $4.99 | one-time |
| 月会员 | $14.99 | one-time |


### CAD快速看图

[App page](https://appshunter.io/ios/app/cad-cadpdf/id6740514839)

Easily view DWG CAD drawings on your mobile device. Scan paper blueprints to create digital versions, convert drawings to PDF or images, and store important data securely in the cloud. Access sample drawings for learning and reference.

**Highlights:** View DWG CAD drawings, Scan paper blueprints, Convert to PDF/images, Cloud storage, Sample drawings

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP-Week | $7.99 | per 7 days |
| VIP-Month | $14.99 | per month |
| VIP-Quarter | $29.99 | per 3 months |
| VIP-Year | $39.99 | per year |
| VIP-Once | $39.99 | one-time |


## Frequently asked questions

### Is 啄木工程 free?

啄木工程 is free to download, with in-app purchases available.

### Is CAD快速看图 free?

CAD快速看图 is free to download, with in-app purchases available.

### Do 啄木工程 or CAD快速看图 have ads?

Neither 啄木工程 nor CAD快速看图 shows ads.

### Which is updated more often, 啄木工程 or CAD快速看图?

啄木工程 ships an update every 4 months, and CAD快速看图 daily. Most recently, 啄木工程 was updated on October 25, 2026 and CAD快速看图 on October 14, 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.*