# Sketch Viewer UP vs Miami Express

The clearest difference is in-app purchases: Miami Express at none against Sketch Viewer UP's 3. Sketch Viewer UP's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, update cadence and ads there is nothing between them.

Both are free to download. Sketch Viewer UP sells 3 one-off in-app purchases. Miami Express asks for nothing beyond the download.

Sketch Viewer UP ships an update every 8 days, Miami Express weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sketch Viewer UP | Miami Express |
| --- | --- | --- |
| 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 | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 53 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [骁宇 陈](https://appshunter.io/developer/1836429187) | [Trackingpremium LLC](https://appshunter.io/developer/1822555605) |

## 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 |


### Miami Express

[App page](https://appshunter.io/ios/app/miami-express/id6807928606)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sketch Viewer UP free?

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

### Is Miami Express free?

Miami Express is free to download, with no in-app purchases.

### Do Sketch Viewer UP or Miami Express have ads?

Neither Sketch Viewer UP nor Miami Express shows ads.

### Which is updated more often, Sketch Viewer UP or Miami Express?

Sketch Viewer UP ships an update every 8 days, and Miami Express weekly. Most recently, Sketch Viewer UP was updated on November 3, 2026 and Miami Express on October 31, 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.*