# STEP Viewer

> Fast STEP File Viewer

Canonical page: [https://chrome-stats.com/d/id6756539299](https://chrome-stats.com/d/id6756539299)

## Overview

- **ID:** `id6756539299`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Smart Cube Labs Co., Ltd.
- **Category:** Productivity
- **Version:** 1.2.2
- **Last updated:** 2026-09-04
- **First published:** 2025-12-23
- **Size:** 61 MB
- **Data as of:** 2026-09-09
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/step-viewer/id6756539299)
- **Website:** [https://mindblownsoft.blogspot.com](https://mindblownsoft.blogspot.com/)
- **Privacy policy:** [https://sites.google.com/view/mind-blown/privacy-polish](https://sites.google.com/view/mind-blown/privacy-polish)

## 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).
https://www.opencascade.com

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

## Rankings

- #1,219,933 — Overall

## Similar extensions and apps

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6756539299)