# Quick3D CAD Viewer — STEP, STL & 3D Model Viewer

> STEP, STL & 3D Model Viewer (iPhone/iPad app by Ryo Tazaki.)

- Source: https://appshunter.io/ios/app/quick3d-cad-viewer/id6816122073 (this page in markdown: same URL + `.md`)
- Developer: [Ryo Tazaki](https://appshunter.io/developer/6814366399)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 28 MB
- Languages: American English, Japanese
- Released: 2026-10-01
- Data updated: 2026-10-16

## What is Quick3D CAD Viewer?

Quick3D Viewer

3D CAD Viewing Made Simple.

Quick3D Viewer is a free 3D model viewer for iPhone and iPad.

Open and explore a wide range of 3D files, including STEP, IGES, STL, OBJ, and more, right from your mobile device.

Whether you're on the factory floor, meeting with clients, or away from your desk, Quick3D Viewer makes it easy to inspect 3D models wherever you go.

Key Features

■ Supports Multiple 3D File Formats

View STEP / STP, IGES / IGS, STL, OBJ, PLY, 3MF, GLB, and USDZ files.

■ Intuitive 3D Navigation

Rotate, zoom, and pan models using simple touch gestures. Explore your designs from different angles.

■ Full-Screen Viewing

Hide banner ads in full-screen mode and enjoy more space to inspect your 3D models.

■ Designed for iPhone and iPad

View 3D models on your phone or tablet, wherever your work takes you.

Perfect For

- Inspecting 3D models on the factory floor
- Reviewing CAD designs and engineering projects
- Sharing designs during meetings
- Checking models for 3D printing
- Viewing CAD files while on the go

3D CAD in Your Pocket.

Make 3D viewing easier with Quick3D Viewer.

## Is Quick3D CAD Viewer safe?

Not enough ratings yet to assess Quick3D CAD Viewer.

## Is Quick3D CAD Viewer legit?

Quick3D CAD Viewer has limited verification signals. The AppsHunter Legitimacy Score for Quick3D CAD Viewer is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1 — 2026-10-14

【QuickSTEP Viewer is now Quick3D Viewer!】

With version 1.1, we've renamed QuickSTEP Viewer to Quick3D Viewer to reflect its expanded support for 3D file formats.

What started as a STEP and IGES viewer has evolved into a more versatile 3D model viewer.

■ What's New
• Renamed the app from QuickSTEP Viewer to Quick3D Viewer
• Added support for STL, OBJ, PLY, 3MF, GLB, and USDZ files
• Improved the 3D model viewing experience
• Added a full-screen mode that hides banner ads
• Optimized layouts for iPhone and iPad

We'll continue improving Quick3D Viewer to make viewing 3D models easier, wherever you go!

### 1.0 — 2026-10-02

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-16.*