# 图纸王 vs Viewra 3D

The clearest difference is update cadence: 图纸王 at every 2 weeks against Viewra 3D's every 4 months. 图纸王 also leads on iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 图纸王 sells 27 in-app purchases, starting at $3.99 per month and Viewra 3D sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

图纸王 ships an update every 2 weeks, Viewra 3D every 4 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 图纸王 | Viewra 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9 ratings)](https://appshunter.io/ios/app/cad3d/id6477474227/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 81 MB | 152 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [FindTop Technology Co., Ltd.](https://appshunter.io/developer/1729410597) | [Shenzhen Seize Times E-Commerce Co., Ltd.](https://appshunter.io/developer/368397197) |

## What reviewers say

### 图纸王

[App page](https://appshunter.io/ios/app/cad3d/id6477474227)

This app provides a collaborative platform for viewing and interacting with 2D and 3D CAD drawings and models on mobile devices. It supports a wide range of file formats and offers features for project management, measurement, and annotation, facilitating communication throughout the product lifecycle.

**Highlights:** Supports numerous CAD and 3D model formats, Real-time multi-user project collaboration, Advanced 3D viewing and manipulation tools, Comprehensive measurement and annotation capabilities, Cross-platform file synchronization and backup, Secure file sharing and preview tracking

**Features:** Vision Pro support

**In-app purchases (27)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月会员 | $3.99 | per month |
| 超级会员连续包月 | $6.99 | per month |
| 会员连续包年 | $14.99 | per year |
| 超级会员连续包年 | $29.99 | per year |
| 3人团队（一年）订阅 | $79.99 | per year |
| 5人团队（一年）订阅 | $149.99 | per year |
| One-month super member | $29.00 | one-time |
| One-month Member | $29.99 | one-time |
| Three months member | $59.99 | one-time |
| One year super member(618) | $69.00 | one-time |
| One-year Member | $69.00 | one-time |
| Three-months Member | $69.00 | one-time |
| One year super member | $79.00 | one-time |
| 3人团队（一年） | $89.99 | one-time |
| One year super member | $99.00 | one-time |
| Two-year Member | $139.00 | one-time |
| 5人团队（一年） | $149.99 | one-time |
| 20-years Super Member | $195.99 | one-time |
| Two year super member | $199.00 | one-time |
| Three-year Member | $209.00 | one-time |
| 100GB cloud space(one year) | $249.99 | one-time |
| Three year super member | $299.00 | one-time |
| 10人团队（一年） | $299.99 | one-time |
| Five-year Member | $349.00 | one-time |
| 20-years Member(discount) | $359.00 | one-time |
| 20-years Member | $389.00 | one-time |
| Five year super member | $499.00 | one-time |


### Viewra 3D

[App page](https://appshunter.io/ios/app/viewra-3d/id6758283083)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Viewra 3D Pro (1 Month) | $2.99 | per month |
| Viewra 3D Pro (1 Year) | $29.99 | per year |
| Viewra 3D Pro (Lifetime) | $79.99 | one-time |


## Frequently asked questions

### Is 图纸王 free?

图纸王 is free to download, with in-app purchases available.

### Is Viewra 3D free?

Viewra 3D is free to download, with in-app purchases available.

### Do 图纸王 or Viewra 3D have ads?

Neither 图纸王 nor Viewra 3D shows ads.

### Which is updated more often, 图纸王 or Viewra 3D?

图纸王 ships an update every 2 weeks, and Viewra 3D every 4 months. Most recently, 图纸王 was updated on October 4, 2026 and Viewra 3D on October 12, 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.*