Best 3Dm Viewer Apps

247+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our 3dm viewer list covers 247+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top 3Dm Viewer Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1iRhino 3DiRhino 3DFree4.6★ (72)NoNoAug 2026
23D File Viewer: OBJ STP & more3D File Viewer: OBJ STP & moreFree4.6★ (48)NoYesAug 2026
33DM Viewer & Converter3DM Viewer & Converter$6.99 was $7.992.0★ (4)NoNoAug 2026
43D Model Viewer - AR & Print3D Model Viewer - AR & PrintFree4.4★ (336)NoYesAug 2026
5PDF Viewer by NutrientPDF Viewer by NutrientFree4.6★ (9.1K)NoYesAug 2026
6Model Viewer | CAD ViewerModel Viewer | CAD ViewerFreeNoNoAug 2026
73D Model Viewer & Converter3D Model Viewer & ConverterFree1.5★ (2)NoYesAug 2026
8PDF Reader & Editor - GoPDFPDF Reader & Editor - GoPDFFree4.6★ (166)YesYesAug 2026

Top Picks for 3Dm Viewer

iRhino 3D#1

iRhino 3D by Robert McNeel & Associates

3D Viewer & Scanner
Editor's Choice
📊 Productivity
4.6😐(72 ratings)
Free
iRhino 3D screenshot 1
iRhino 3D screenshot 2
iRhino 3D screenshot 3
iRhino 3D screenshot 4
iRhino 3D screenshot 5
iRhino 3D screenshot 6

View and present 3D models from Rhino 3D on your iPhone or iPad. Navigate models with intuitive touch gestures, load files from various sources, and visualize them in augmented reality. Includes a markup tool for annotations.

What We Love

  • 👍 Smooth and intuitive 3D model manipulation
  • 🚀 Fast performance with complex models
  • 📱 Great for client presentations and demos
  • 💼 Useful for on-the-go model viewing

Room to Improve

  • 🐛 Frequent crashes on large files
  • ❌ Limited to viewer functionality only
  • 🚫 No native editing capabilities
3D File Viewer: OBJ STP & more#2

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

STP STL OBJ FBX GLTF & More
Strong Contender
🔧 Utilities
4.5(48 ratings)
FreeIn-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.

3DM Viewer & Converter#3

3DM Viewer & Converter by Victor Bovio

View 3DM & export to CAD files
Worth Considering
📊 Productivity
2.0(4 ratings)
$6.99
3DM Viewer & Converter screenshot 1
3DM Viewer & Converter screenshot 2
3DM Viewer & Converter screenshot 3
3DM Viewer & Converter screenshot 4

View and convert 3DM model files to various CAD formats. Offers rendering controls, model information, and graphic manipulation tools. Supports loading files from archives.

More 3Dm Viewer apps to explore

4
3D Model Viewer - AR & Print
3D Model Viewer - AR & Print
3D Model Viewer - AR & Print
Simulate 3D Printing and AR
Free

Explore and interact with 3D models on your mobile device. Simulate the 3D printing process to identify potential issues before committing to a print. Visualize your models in augmented reality, adjusting scale and rotation within your real-world environment.

View 3D models in real-timeRotate, zoom, and paint modelsSimulate 3D printing process
📊 Productivity
(336)
free with in-app purchases
5
PDF Viewer by Nutrient
PDF Viewer by Nutrient
PDF Viewer by Nutrient
Fill Forms, Sign, Edit, Redact
Free

Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.

View and search PDFsAnnotate with highlights and notesSign documents digitally
📊 Productivity
(9.1K)
freemium
6
Model Viewer | CAD Viewer
Model Viewer | CAD Viewer
Model Viewer | CAD Viewer
STL, GLB, USD, OBJ, 3DM, PLY
Free
🎨 Graphics & Design
(0)
7
3D Model Viewer & Converter
3D Model Viewer & Converter
3D Model Viewer & Converter
STL,GLB,3MF,OBJ,DXF,USDZ ...
Free

This tool allows you to open, view, and convert a wide variety of 3D file formats on your Apple devices. It offers basic editing, cross-sectioning, and exploded views, with options for batch conversion and exporting projected views.

Import numerous 3D formatsConvert between popular 3D formatsBasic editing tools
📊 Productivity
(2)
freemium
8
PDF Reader & Editor - GoPDF
PDF Reader & Editor - GoPDF
PDF Reader & Editor - GoPDF
Sign, Photos Converter & Maker
Free

Easily manage, view, and read all PDF documents on your smartphone or tablet. This versatile app offers a simple interface for quick access to files, with features like zoom, dark mode, and easy sharing. It's designed for efficient document handling anytime, anywhere.

View and read all PDF filesSearch and display all PDFsZoom in and out
🔧 Utilities
(166)
free with in-app purchases
9
PDF Reader - Viewer&Scanner
PDF Reader - Viewer&Scanner
PDF Reader - Viewer&Scanner
PDF Reader&PDF Viewer
Free
🔧 Utilities
(0)
10
Open3D: STL & 3D Model Viewer
Open3D: STL & 3D Model Viewer
Open3D: STL & 3D Model Viewer
View STL, GLB, STEP, DXF & OBJ
Free

Instantly view and inspect a wide range of 3D file formats directly on your device. Offers AR viewing, 3D printing readiness checks, and detailed model specifications without requiring an account or cloud upload.

Supports over 15 3D file formatsAugmented Reality (AR) viewing via Apple Quick Look3D printing readiness checks (manifold, overhangs, wall thickness)
🎨 Graphics & Design
(3)
ad-supported
11
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
12
STL & 3D Model Viewer - Mes3D
STL & 3D Model Viewer - Mes3D
STL & 3D Model Viewer - Mes3D
Supports STEP, GLB, OBJ, glTF
Free

Easily view, inspect, and explore 3D models on your device. Supports common file formats and offers intuitive touch controls for rotation, panning, and zooming. Visualize models in AR and capture snapshots for sharing.

Import 3D files (STL, GLB, OBJ, USDZ, etc.)Intuitive touch controls for rotation, pan, zoomMesh-based preview and rendering
🛠️ Developer Tools
(4)
free
13
Viewra 3D
Viewra 3D
Viewra 3D
A Private and Clean 3D Viewer
Free
🔧 Utilities
(0)
14
Winmail Viewer:for DAT,XPS,MSG
Winmail Viewer:for DAT,XPS,MSG
Winmail Viewer:for DAT,XPS,MSG
RAR, Winmail.dat Reader, TNEF
Free

This tool allows users to extract, view, and save the contents of winmaildat, msg, and xps files. It provides a complete solution for managing these file types, including viewing all attachments and rich text messages.

Extract winmaildat, msg, xps filesView file contentsSave extracted files
📊 Productivity
(1)
free
15
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
16
DraftPlanar: PDF Plan Viewer
DraftPlanar: PDF Plan Viewer
DraftPlanar: PDF Plan Viewer
Blueprint measure, scale, draw
Free

View and annotate large PDF documents offline on your Apple devices. Compare multiple plans side-by-side, measure dimensions, and mark up drawings with precision tools. Ideal for professionals and anyone working with complex documents.

Offline PDF viewingSide-by-side document comparisonPrecision measurement tool
📊 Productivity
(1)
freemium
17
PDF Expert Viewer
PDF Expert Viewer
PDF Expert Viewer
Simple PDF Reader
Free
🔧 Utilities
(0)
18
PDF Reader - All PDF Viewer
PDF Reader - All PDF Viewer
PDF Reader - All PDF Viewer
Document Reader - Read all PDF
Free

Easily view and manage all your PDF files on your mobile device. This app offers offline access, dark mode, and convenient file management features for efficient document handling.

Offline PDF viewingDark mode supportFile management
📊 Productivity
(13)
free with in-app purchases
19
Locklizard Safeguard Viewer
Locklizard Safeguard Viewer
Locklizard Safeguard Viewer
PDF DRM Security
Free

This free application allows users to view protected PDF documents on their iOS devices. It supports secure PDF files that have been protected using specific DRM security software.

View secure PDF documentsSupports PDC filesDRM protected PDF viewing
🔧 Utilities
(8)
free
20
3D PDF Viewer
3D PDF Viewer
3D PDF Viewer
by ProtoTech Solutions and Services Pvt. Ltd.
Free

View and interact with 3D models embedded in PDF files on your mobile device. Easily zoom, pan, and rotate models using intuitive multi-touch gestures. Load files directly from cloud storage services like Dropbox and Google Drive.

3D PDF model rendering (.prc)Multi-touch gestures (zoom, pan, rotate)Import from cloud storage
💼 Business
(2)
free

FAQ about 3Dm Viewer

What are the best 3dm viewer apps for iPhone?
iRhino 3D tops our 3dm viewer apps ranking as of August 2026, with a 4.6-star average from 72 App Store ratings, and it's free to download.
Yes — 19 of the top 3dm viewer apps we rank are free to download, including iRhino 3D and 3D File Viewer: OBJ STP & more.
iRhino 3D has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 247+ 3dm viewer apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
iRhino 3D is the official viewer for Rhino 3D models on iOS devices. It allows you to view, navigate, and present your 3D designs directly on your iPhone or iPad. You can easily load models and even see them in your real-world environment using AR.
Key features include intuitive touch controls for panning, zooming, and orbiting 3D models, a built-in file browser for loading models from your device or cloud storage, an Augmented Reality (AR) mode to place models in space, and an integrated markup tool for drawing annotations on your views.

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