# 3D看图大师 vs STL Viewer

The clearest difference is ads: 3D看图大师 at none against STL Viewer's shown. 3D看图大师 also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 3D看图大师 sells 8 in-app purchases, starting at $6.99 per month and STL Viewer sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

3D看图大师 ships an update weekly, STL Viewer every 6 days. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 3D看图大师 | STL Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 6 days** |
| Size | 85 MB | 48 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [诗勇 康](https://appshunter.io/developer/1693415494) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## What reviewers say

### 3D看图大师

[App page](https://appshunter.io/ios/app/3d/id6776906757)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度高级会员 | $6.99 | per month |
| 半年高级会员 | $29.99 | per 6 months |
| 年度高级会员 | $39.99 | per year |
| 5GB空间 | $29.99 | one-time |
| 10GB空间 | $39.99 | one-time |
| 20GB空间 | $69.99 | one-time |
| 买两年送一年高级会员 | $89.99 | one-time |
| 买三年送两年高级会员 | $129.99 | one-time |


### STL Viewer

[App page](https://appshunter.io/ios/app/stl-viewer-3d-print-and-g-code/id6813788641)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LayerPeek Pro Monthly | $1.99 | per month |
| LayerPeek Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is 3D看图大师 free?

3D看图大师 is free to download, with in-app purchases available.

### Is STL Viewer free?

STL Viewer is free to download, with in-app purchases available.

### Do 3D看图大师 or STL Viewer have ads?

STL Viewer shows ads; 3D看图大师 does not.

### Which is updated more often, 3D看图大师 or STL Viewer?

3D看图大师 ships an update weekly, and STL Viewer every 6 days. Most recently, 3D看图大师 was updated on October 9, 2026 and STL Viewer on October 13, 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.*