---
title: "STEP Viewer - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "STEP Viewer opens STEP (.step, .stp) CAD files in 3D on your phone. No desktop CAD software needed.  Everything is free. There are no in-app purchases. Credits only skip the ad; without credits you ca"
---

# STEP Viewer — United States
> Fast STEP File Viewer

![STEP Viewer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/ab/a6/f6/aba6f6ce-a149-588c-d72d-3ac67145111c/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [Smart Cube Labs Co](https://apptail.io/developer/smart-cube-labs-co-pXxd)
**Category:** Productivity
**Rating:** 1.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.mindblown.stepfileviewer
**Store:** Apple App Store
**Country:** United States
**Version:** 1.2.2 (released 2026-09-04)
**Original Release:** 2025-12-23
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6756539299)
**AppTail Page:** [https://apptail.io/app/step-viewer-aKXx/united-states](https://apptail.io/app/step-viewer-aKXx/united-states)

## STEP Viewer Description
STEP Viewer opens STEP (.step, .stp) CAD files in 3D on your phone. No desktop CAD software needed.

Everything is free. There are no in-app purchases. Credits only skip the ad; without credits you can still open every file after watching a short ad.

Key features

* Open .step and .stp files straight from your file manager - just tap the file
* Measure your model: a bounding box with all three side lengths, in mm or m
* Six fixed views (front, right, back, left, top, bottom), plus pinch to zoom, pan and rotate
* Save the converted model as GLB whenever you need it
* Large files show the estimated time and memory before conversion starts, and progress while it runs
* If a file cannot be opened, the app tells you why instead of failing silently
* Available in 12 languages, following your device settings

Supported formats

* Input: .stp, .step (STEP AP203, AP214)
* Output: .glb (glTF Binary)

How to use

1. Tap a .step file in your file manager, or open the app and tap the folder icon
2. Wait for the conversion - large files show progress and an estimate
3. Drag to rotate, pinch to zoom, tap the view button to switch sides

License
This app uses Open CASCADE Technology (LGPL-2.1).


For questions or bug reports, please contact us by email.

## STEP Viewer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/94/ac/4a/94ac4a4b-f8aa-dc79-3a5c-eaaa39dbf50a/IMG_1004.PNG/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/36/70/8e/36708eb6-798e-1249-47dc-aa90b679cc2e/IMG_0998.PNG/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ae/5f/67/ae5f67d9-5f0c-06b6-d7c9-73ba85e7b394/IMG_1005.PNG/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/14/43/bf/1443bf19-cde3-151e-3f68-87f60378497d/IMG_0999.PNG/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ff/2f/79/ff2f79d3-059e-236a-7ab9-1d33ddec2379/IMG_1006.PNG/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/db/06/e7/db06e7b7-a3ed-2dc3-7cef-296ccb5e027a/IMG_1001.PNG/1242x2688.png)

## STEP Viewer Rating Breakdown in United States
- 5 stars: 0 (0%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 1 (100%)






## STEP Viewer Available In
- [United States](https://apptail.io/app/step-viewer-aKXx/united-states)
- [Austria](https://apptail.io/app/step-viewer-aKXx/austria)
- [Australia](https://apptail.io/app/step-viewer-aKXx/australia)
- [Azerbaijan](https://apptail.io/app/step-viewer-aKXx/azerbaijan)
- [Belarus](https://apptail.io/app/step-viewer-aKXx/belarus)
- [Canada](https://apptail.io/app/step-viewer-aKXx/canada)
- [Chile](https://apptail.io/app/step-viewer-aKXx/chile)
- [China](https://apptail.io/app/step-viewer-aKXx/china)
- [Czechia](https://apptail.io/app/step-viewer-aKXx/czechia)
- [Denmark](https://apptail.io/app/step-viewer-aKXx/denmark)
- [Finland](https://apptail.io/app/step-viewer-aKXx/finland)
- [United Kingdom](https://apptail.io/app/step-viewer-aKXx/united-kingdom)
- [Ghana](https://apptail.io/app/step-viewer-aKXx/ghana)
- [India](https://apptail.io/app/step-viewer-aKXx/india)
- [Italy](https://apptail.io/app/step-viewer-aKXx/italy)
- [Japan](https://apptail.io/app/step-viewer-aKXx/japan)
- [Kazakhstan](https://apptail.io/app/step-viewer-aKXx/kazakhstan)
- [Sri Lanka](https://apptail.io/app/step-viewer-aKXx/sri-lanka)
- [Lithuania](https://apptail.io/app/step-viewer-aKXx/lithuania)
- [Latvia](https://apptail.io/app/step-viewer-aKXx/latvia)
- [North Macedonia](https://apptail.io/app/step-viewer-aKXx/north-macedonia)
- [Macao SAR China](https://apptail.io/app/step-viewer-aKXx/macau)
- [Malaysia](https://apptail.io/app/step-viewer-aKXx/malaysia)
- [Namibia](https://apptail.io/app/step-viewer-aKXx/namibia)
- [Oman](https://apptail.io/app/step-viewer-aKXx/oman)
- [Pakistan](https://apptail.io/app/step-viewer-aKXx/pakistan)
- [Poland](https://apptail.io/app/step-viewer-aKXx/poland)
- [Qatar](https://apptail.io/app/step-viewer-aKXx/qatar)
- [Suriname](https://apptail.io/app/step-viewer-aKXx/suriname)
- [Ukraine](https://apptail.io/app/step-viewer-aKXx/ukraine)
- [Vietnam](https://apptail.io/app/step-viewer-aKXx/vietnam)
- [Angola](https://apptail.io/app/step-viewer-aKXx/angola)
- [South Africa](https://apptail.io/app/step-viewer-aKXx/south-africa)

---

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