# Outcrop vs Sketch Viewer UP

The clearest difference is in-app purchases: Outcrop at none against Sketch Viewer UP's 3. Outcrop also leads on iOS requirement (11.0 vs 13.0). Sketch Viewer UP's advantage is update cadence (every 8 days vs every 5 weeks) and ratings volume (10 vs 3). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 1.7 for Outcrop against 1.6 for Sketch Viewer UP. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Outcrop ships an update every 5 weeks, Sketch Viewer UP every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Outcrop | Sketch Viewer UP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (3 ratings)](https://appshunter.io/ios/app/outcrop/id1056810833/reviews)** | [1.6 (10 ratings)](https://appshunter.io/ios/app/sketch-viewer-up-model-browser/id6447847214/reviews) |
| Number of ratings | 3 | **10** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 40 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Next-Shot](https://appshunter.io/developer/1056810832) | [骁宇 陈](https://appshunter.io/developer/1836429187) |

## What reviewers say

### Outcrop

[App page](https://appshunter.io/ios/app/outcrop/id1056810833)

This app aids geologists in field studies by allowing them to capture high-resolution images of outcrops. Users can interpret geological features, add annotations, take measurements, and export data to construct 3D geological models.

**Highlights:** High-resolution outcrop imaging, Interpretation of facies, structures, and boundaries, Annotation and measurement tools, Dip and azimuth measurement, GPS location integration, 3D geological model export (GOCAD format)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Outcrop free?

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

### Is Sketch Viewer UP free?

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

### Which has better reviews, Outcrop or Sketch Viewer UP?

Outcrop is rated higher. Outcrop averages 1.7 out of 5 from 3 ratings, while Sketch Viewer UP averages 1.6 from 10 ratings.

### Do Outcrop or Sketch Viewer UP have ads?

Neither Outcrop nor Sketch Viewer UP shows ads.

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

Outcrop ships an update every 5 weeks, and Sketch Viewer UP every 8 days. Most recently, Outcrop was updated on October 24, 2026 and Sketch Viewer UP on October 24, 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.*