# STP Viewer vs Sketch 3D Model for Viewer

The clearest difference is iOS requirement: STP Viewer at 13.0 against Sketch 3D Model for Viewer's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. STP Viewer sells 3 in-app purchases, starting at $1.99 per 7 days and Sketch 3D Model for Viewer sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | STP Viewer | Sketch 3D Model for Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/stp-viewer-step-3d/id6770497525/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Monetization | Free with in-app purchases | — |
| Size | 44 MB | 59 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CODIGITAL SOLUTIONS](https://appshunter.io/developer/1829802387) | [Fredika Chintya](https://appshunter.io/developer/6812610066) |

## What reviewers say

### STP Viewer

[App page](https://appshunter.io/ios/app/stp-viewer-step-3d/id6770497525)

This application allows users to open and view large, complex 3D CAD files on their mobile devices. It supports standard STEP and STP file formats, offering smooth navigation and offline accessibility for professionals and enthusiasts alike.

**Highlights:** Open STP and STEP files, Fluid 3D navigation (orbit, pan, zoom), Instant file loading from various sources, View complex assemblies, Offline accessibility, Battery and RAM efficient, Supports files from major CAD software

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $1.99 | per 7 days |
| Pro Access | $4.99 | per month |
| Pro Access | $9.99 | per year |


### Sketch 3D Model for Viewer

[App page](https://appshunter.io/ios/app/sketch-3d-model-for-viewer/id6812610064)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Sketch Pro for 3D model view | $4.99 | per 7 days |
| monthly subscriptions for sketch | $14.99 | per month |
| Yearly subscriptions for sketch 3D | $59.99 | per year |


## Frequently asked questions

### Is STP Viewer free?

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

### Is Sketch 3D Model for Viewer free?

Sketch 3D Model for Viewer is free to download, with in-app purchases available.

### Do STP Viewer or Sketch 3D Model for Viewer have ads?

Neither STP Viewer nor Sketch 3D Model for Viewer shows ads.

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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.*