# Sketch Viewer UP vs CAD快速看图

The clearest difference is review sentiment: CAD快速看图 at 20% against Sketch Viewer UP's 0%. Sketch Viewer UP's advantage is update cadence (every 8 days vs every 3 weeks) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sketch Viewer UP sells 3 one-off in-app purchases and CAD快速看图 sells 4 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sketch Viewer UP ships an update every 8 days, CAD快速看图 every 3 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sketch Viewer UP | CAD快速看图 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (10 ratings)](https://appshunter.io/ios/app/sketch-viewer-up-model-browser/id6447847214/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 0.0% of reviews | **20.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 40 MB | 42 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [骁宇 陈](https://appshunter.io/developer/1836429187) | [波 张](https://appshunter.io/developer/1726107240) |

## What reviewers say

### Sketch Viewer UP

[App page](https://appshunter.io/ios/app/sketch-viewer-up-model-browser/id6447847214)

This application allows users to import and view 3D models from various professional design software. It supports a wide range of file formats, making it convenient for designers, engineers, and students to access and analyze 3D drawings on their mobile devices.

**Highlights:** Import and view 3D drawings, Supports multiple professional 3D file formats, Collection of standard industry libraries, Mobile 3D viewing software, Professional CAD drawing and modeling

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一季度会员 | $9.99 | one-time |
| 一年会员 | $24.99 | one-time |
| 永久会员 | $29.99 | one-time |


### CAD快速看图

[App page](https://appshunter.io/ios/app/cad-pdf/id6751618696)

This app provides a comprehensive mobile toolkit for CAD users, offering fast viewing, precise measurement, and seamless conversion of various drawing formats. It supports cloud collaboration and offline access, making it ideal for on-site work, design reviews, and study.

**Highlights:** Fast DWG/DXF viewing, Precise measurement tools, 2D/3D drawing detail, Cloud collaboration, Offline access, PDF conversion

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DWG | $9.99 | per 7 days |
| DWG | $14.99 | per month |
| DWG | $19.99 | per 3 months |
| DWG | $29.99 | per year |


## Frequently asked questions

### Is Sketch Viewer UP free?

Sketch Viewer UP 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 Sketch Viewer UP or CAD快速看图 have ads?

Neither Sketch Viewer UP nor CAD快速看图 shows ads.

### Which is updated more often, Sketch Viewer UP or CAD快速看图?

Sketch Viewer UP ships an update every 8 days, and CAD快速看图 every 3 weeks. Most recently, Sketch Viewer UP was updated on November 3, 2026 and CAD快速看图 on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*