Best 3D File Viewer Apps

184+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated July 2026

Out of 184+ 3d file viewer apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for 3D File Viewer

3D File Viewer: OBJ STP & more#1

3D File Viewer: OBJ STP & more by Andeesh Mehdi Syed

STP STL OBJ FBX GLTF & More
Editor's Choice
🔧 Utilities
4.5(35 ratings)
FreeAdsIn-App Purchases
3D File Viewer: OBJ STP & more screenshot 1
3D File Viewer: OBJ STP & more screenshot 2
3D File Viewer: OBJ STP & more screenshot 3

Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.

STL Simple Viewer#3

STL Simple Viewer by Victor Bovio

Quickly view 3D STL CAD models
Worth Considering
📊 Productivity
4.3😞(847 ratings)
FreeAdsIn-App Purchases
STL Simple Viewer screenshot 1
STL Simple Viewer screenshot 2
STL Simple Viewer screenshot 3
STL Simple Viewer screenshot 4

Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.

What We Love

  • 🚀 Simple and intuitive viewer
  • 👍 Useful viewing options
  • 💡 Supports multiple file formats

Room to Improve

  • 🐛 Frequent crashes
  • 🔋 High battery consumption
  • 🚨 Excessive and intrusive ads

More 3D File Viewer apps to explore

4
Autodesk Fusion
Autodesk Fusion
Autodesk Fusion
by Autodesk
Free

Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.

View over 100 file formatsCollaborate on 3D designsComment on project activities
📊 Productivity
(4.1K)
free
5
3D GO | 3D Printing Models
3D GO | 3D Printing Models
3D GO | 3D Printing Models
Thingiverse Printables Cults3d
Free

This app consolidates 3D model searching, viewing, and slicing from major platforms into a single interface. It allows users to find, preview, organize, and prepare STL files for 3D printing, streamlining the entire workflow.

Search multiple 3D model sitesFull 3D preview and STL viewerBuilt-in 3D slicer with G-code export
🔧 Utilities
(3.8K)
free with in-app purchases
6
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
* Support 2D/3D CAD formats
Free

This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.

View and edit 2D/3D CAD drawingsSupports over 40 3D drawing formatsAccurate measurement and annotation tools
📊 Productivity
(50)
free with in-app purchases
7
3D Model Viewer - AR View
3D Model Viewer - AR View
3D Model Viewer - AR View
View model in AR and 3D mode
Free

View and interact with various 3D model formats in both AR and 3D modes. This intuitive tool supports local and cloud documents, custom backgrounds, and shadow casting. Easily import models via multiple methods and share your creations.

AR and 3D viewing modesSupports numerous 3D file formatsLocal and cloud document integration
📊 Productivity
(323)
free with in-app purchases
8
SketchUp - 3D Modeling
SketchUp - 3D Modeling
SketchUp - 3D Modeling
Interior Design & Architecture
Free

This platform offers intuitive 3D modeling tools for design enthusiasts and professionals. Visualize concepts, create photorealistic visuals, and even use AI to generate design ideas. Scan real-world spaces and view your creations in augmented reality.

3D modeling toolsGenerative AI designsRoom planner & space design
🎨 Graphics & Design
(17K)
free with in-app purchases
9
Emb3D 3D Model Viewer
Emb3D 3D Model Viewer
Emb3D 3D Model Viewer
A Powerful 3D Model Viewer
Free

Explore and showcase your 3D models with advanced rendering and intuitive controls. Supports multiple file formats, ideal for entertainment or preparing models for 3D printing.

High performance renderingIntuitive gesturesMultiple 3D formats
🔧 Utilities
(241)
free with in-app purchases
10
Documents: File Manager & Docs
Documents: File Manager & Docs
Documents: File Manager & Docs
Converter. Downloader. Reader.
Free

This app is a comprehensive file manager and document editor for mobile devices. It allows users to organize, edit, convert, and annotate various file types, including PDFs, Office documents, and audio/video files. It also features transcription, scanning, and cloud integration.

Edit PDFs directlyConvert files to PDFOrganize files and folders
📊 Productivity
(617K)
free with in-app purchases
11
Polycam 3D Scans & Floor Plans
Polycam 3D Scans & Floor Plans
Polycam 3D Scans & Floor Plans
LiDAR for Measurement & CAD
Free

Create high-quality 3D models, precise LiDAR scans, and immersive 360° images directly from your iPhone or iPad. Edit and export your creations in industry-standard formats, and share them with a global community of creators.

Create high-quality 3D models from photosPrecise LiDAR 3D scanningGenerate detailed 3D room models
📷 Photo & Video
(43K)
free with in-app purchases
12
STEP Viewer
STEP Viewer
STEP Viewer
Fast STEP File Viewer
Free
📊 Productivity
(0)
13
GLB File Viewer
GLB File Viewer
GLB File Viewer
by Smart Cube Labs Co., Ltd.
Free
📊 Productivity
(0)
14
3D modeling: Design my model
3D modeling: Design my model
3D modeling: Design my model
Sculpt & sketch digital art
Free

Create 3D models and digital art on your mobile device. Sculpt, sketch, and color your designs with intuitive gesture controls and a comprehensive set of modeling tools. Export your creations in standard formats.

Gesture-based 3D manipulationVertex, edge, and face editing toolsSculpting and coloring capabilities
🎨 Graphics & Design
(13K)
free with in-app purchases
15
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
View CAD files on iPhone, iPad
Free

View, analyze, and collaborate on 3D CAD files directly from your mobile device. Supports numerous popular CAD formats and offers tools for measurements, reporting, and team feedback.

View 3D CAD parts and assembliesSupport for numerous CAD file formatsOffline viewing of downloaded files
🔧 Utilities
(1)
subscription
16
exocad webview
exocad webview
exocad webview
Fast STL 3D Viewer
Free

This free 3D viewer allows you to quickly load and inspect various 3D model file formats on any mobile device. It supports common open formats and offers intuitive controls for adjusting transparency, rotation, and shading. Specialized features are available for dental professionals using specific software.

Load various 3D model formats (STL, OBJ, PLY, etc.)Intuitive touch controlsAdjust mesh transparency and shading
🔧 Utilities
(14)
free
17
3D File Viewer - PrintPeek
3D File Viewer - PrintPeek
3D File Viewer - PrintPeek
Fast STL OBJ 3MF PLY previews
Free
🔧 Utilities
(0)
18
AutoCAD
AutoCAD
AutoCAD
DWG Viewer & Editor
Free

Access and edit CAD drawings on the go with this official application. It provides essential drafting and design tools for creating, updating, and sharing 2D drawings from any device. Collaborate with teams and simplify workflows by accessing files from various cloud storage services.

2D file viewingCreate, edit, and share 2D drawingsOffline work and sync
📊 Productivity
(6.3K)
freemium
19
My File Organizer
My File Organizer
My File Organizer
Organize Files & Documents
Free

Consolidate and manage local and cloud files within one app. View, save, and transfer documents, presentations, media, and more across multiple cloud services and your device.

Unified local and cloud file managementInbuilt file viewer and playerTransfer files between cloud drives
🔧 Utilities
(6.5K)
ad-supported
20
Unzip - Zip RAR 7Z File Viewer
Unzip - Zip RAR 7Z File Viewer
Unzip - Zip RAR 7Z File Viewer
File Extractor,Archive Manager
Free

This app allows you to extract and compress various archive file formats, including ZIP, RAR, and 7Z. It also offers robust file management, text and image editing, video playback, and OCR recognition. Secure your files with app password protection and fingerprint unlock.

Extract ZIP, RAR, 7Z archivesCompress files with ZIP and 7ZApp password and fingerprint unlock
🔧 Utilities
(573)
free with in-app purchases

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