Best Free Cad Viewer Apps

225+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our free cad viewer list covers 225+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Free Cad Viewer

AutoCAD#1

AutoCAD by Autodesk

DWG Viewer & Editor
Editor's Choice
📊 Productivity
4.4😞(6.3K ratings)
FreeIn-App Purchases
AutoCAD screenshot 1
AutoCAD screenshot 2
AutoCAD screenshot 3
AutoCAD screenshot 4
AutoCAD screenshot 5
AutoCAD screenshot 6

View and edit AutoCAD drawings on the go! Access all DWG files, annotate, measure, and share designs easily. Download now to streamline your workflow.

What We Love

  • 🚀 Intuitive and easy to learn
  • 📱 Convenient mobile solution
  • 👍 Great for site visits and field work
  • 🔍 Useful for viewing and marking up drawings

Room to Improve

  • 🐛 Crashes frequently
  • 🔒 Difficult login and account management
  • 🔍 Limited functionality compared to desktop version
DWG FastView-CAD Viewer&Editor#2

DWG FastView-CAD Viewer&Editor by Gstarsoft Co., Ltd

* Support 2D/3D CAD formats
Strong Contender
📊 Productivity
3.7😐(50 ratings)
FreeAdsIn-App Purchases
DWG FastView-CAD Viewer&Editor screenshot 1
DWG FastView-CAD Viewer&Editor screenshot 2
DWG FastView-CAD Viewer&Editor screenshot 3
DWG FastView-CAD Viewer&Editor screenshot 4
DWG FastView-CAD Viewer&Editor screenshot 5
DWG FastView-CAD Viewer&Editor screenshot 6

DWG FastView-CAD Viewer allows users to view, edit, and share CAD drawings on mobile devices with ease. This intuitive app enables quick access to important design files anytime, anywhere. Access professional-grade features on-the-go and streamline your CAD workflow today.

What We Love

  • 🚀 Fast and efficient
  • 👍 Easy to use and intuitive
  • 💡 Convenient mobile CAD viewing and editing
  • 🚀 Quick file loading

Room to Improve

  • 🐛 Crashes and freezes
  • 💰 Subscription model with limited free features
  • 🔒 Lack of customer support and communication
CAD Reader-View & Measure DWG#3

CAD Reader-View & Measure DWG by Beijing Honghu Yuntu Technology Co., Ltd.

DWG & PDF viewer
Worth Considering
📊 Productivity
4.6(2.5K ratings)
FreeAdsIn-App Purchases
CAD Reader-View & Measure DWG screenshot 1
CAD Reader-View & Measure DWG screenshot 2
CAD Reader-View & Measure DWG screenshot 3
CAD Reader-View & Measure DWG screenshot 4
CAD Reader-View & Measure DWG screenshot 5

This cross-platform CAD software allows users to view, measure, and annotate DWG, DXF, and PDF files, providing essential tools for engineers, designers, and quantity surveyors. With features such as measurement tools, collaboration tools, and advanced features like PDF to CAD conversion, it enables efficient work and collaboration, try it now!

More Free Cad Viewer apps to explore

4
Autodesk Fusion
Autodesk Fusion
Autodesk Fusion
by Autodesk
Free

Collaborate on 3D designs with anyone using Autodesk Fusion™ for iPhone and iPad. View, comment, and share 3D models in over 100 file formats, track project activities, and access design properties. Sign in with your Fusion account and start designing anytime, anywhere.

📊 Productivity
(4.1K)
5
SketchUp - 3D Modeling
SketchUp - 3D Modeling
SketchUp - 3D Modeling
Interior Design & Architecture
Free

Design and visualize 3D models easily with this intuitive application for architects and designers. Start bringing your ideas to life in three dimensions now!

🎨 Graphics & Design
(17K)
6
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
DWG Viewer - DWG/DXF Reader
Free

This multifunctional CAD drawing viewing and sharing application allows users to quickly view, share, and manage DWG drawings, with features like PDF conversion, cloud synchronization, and Wi-Fi printing. It is ideal for professionals like architects, engineers, and contractors who need to effortlessly handle various CAD drawing formats and tasks.

📊 Productivity
(33)
7
SnapCAD Viewer
SnapCAD Viewer
SnapCAD Viewer
Lightweight DWG/DXF Viewer
Free
📊 Productivity
(0)
8
ARES Touch: DWG Viewer & CAD
ARES Touch: DWG Viewer & CAD
ARES Touch: DWG Viewer & CAD
Read, Modify & Annotate in DWG
Free

This CAD software allows professionals to read, create, annotate, and modify DWG drawings on-the-go, with free features including viewing, sharing, and dimensioning tools, and additional premium features available with a subscription. Try the full experience for free and take your CAD work to the next level with a mobile solution that offers flexibility and power.

📊 Productivity
(143)
9
ZWCAD Mobile - Mobile CAD
ZWCAD Mobile - Mobile CAD
ZWCAD Mobile - Mobile CAD
DWG viewer and editor
Free

A powerful mobile CAD app offering DWG viewing, editing, and sharing functions, with precise measurement, annotation, and printing capabilities. Trusted by over 10 million users, it supports various file formats and provides a wide range of editing, drawing, and measuring tools for architects, engineers, and construction professionals. Contact for more information: tech@zwsoft.com.

📊 Productivity
(302)
10
STL Simple Viewer
STL Simple Viewer
STL Simple Viewer
Quickly view 3D STL CAD models
Free

View 3D STL CAD models with ease using our app. Features include support for both ASCII and Binary STL files, graphic operations for manipulation, and rendering options for detailed viewing. Contact us at support@boviosoft.com for more information.

📊 Productivity
(721)
11
uMake: 3D CAD Modeling, Design
uMake: 3D CAD Modeling, Design
uMake: 3D CAD Modeling, Design
Sketch, Model & Design with AI
Free

Create stunning 3D models with uMake: a user-friendly app for both professionals and beginners. From sketching to rendering, uMake offers powerful tools and features to bring your ideas to life. Try it now and unleash your creativity!

🎨 Graphics & Design
(4K)
12
ViewCAD:2D/3D CAD Model Viewer
ViewCAD:2D/3D CAD Model Viewer
ViewCAD:2D/3D CAD Model Viewer
View CAD Models Anywhere
Free
📊 Productivity
(0)
13
3D CAD Model Viewer
3D CAD Model Viewer
3D CAD Model Viewer
by Machine Research Corporation
Free

This application allows users to view, analyze, and share 3D CAD models and drawings, making it easier to collaborate and work efficiently. It helps machine shops increase profitability by cataloging and automating their library of previous work, enabling instant search and recall of quotes and models to streamline the quoting process.

💼 Business
(13)
14
Polycam 3D Scanner, LiDAR, 360
Polycam 3D Scanner, LiDAR, 360
Polycam 3D Scanner, LiDAR, 360
LiDAR for Measurement & CAD
Free

Transform your smartphone into a powerful 3D scanner with LiDAR technology, allowing you to create detailed 3D models and explore immersive 360-degree captures with ease. Experience next-level scanning capabilities with just a tap of your device.

📷 Photo & Video
(5K)
15
PDF Viewer by Nutrient
PDF Viewer by Nutrient
PDF Viewer by Nutrient
Fill Forms, Sign, Edit, Redact
Free

An advanced PDF viewing application for iPhone and iPad that allows easy annotation, filling forms, signing, editing, and redacting PDF documents. Access files from various cloud services and enjoy a seamless reading experience on the go.

📊 Productivity
(9.1K)
16
Onshape 3D CAD
Onshape 3D CAD
Onshape 3D CAD
Speed Up Your Product Design
Free

Join thousands of professional users in revolutionizing product design with our full mechanical CAD platform. Collaborate in real-time from any device with an internet connection, streamline your design process, and access new features regularly. Start creating today with a free sign-up!

📊 Productivity
(395)
17
SimLab CAD Viewer
SimLab CAD Viewer
SimLab CAD Viewer
by Simulation Lab Software
Free

This application enables users to view and interact with 3D CAD and architectural models, supporting various file formats and allowing navigation, configuration viewing, and access from multiple sources. Try it now to easily visualize and explore 3D models from anywhere.

🔧 Utilities
(5)
18
ArcSite: Floor Plans and CAD
ArcSite: Floor Plans and CAD
ArcSite: Floor Plans and CAD
Sketch, Draw & Remodel On-Site
Free

ArcSite allows users to easily design, sketch, and draw floor plans with intuitive CAD tools suitable for beginners and experienced designers. Start sketching floor plans quickly, add photos and annotations, and generate professional estimates. Stay organized with cloud storage, go paperless, and finish drawings from anywhere.

📊 Productivity
(8.4K)
19
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 models in AR and 3D mode using this advanced model viewer. Enjoy features like custom backgrounds, shadow casting, and support for multiple file formats. Share and save screenshots, access files locally or from the cloud, and get detailed model information. For feedback or support, email belighten@gmail.com.

📊 Productivity
(323)
20
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
View CAD files on iPhone, iPad
Free

This application allows users to view, analyze, and collaborate on 3D CAD files on their iPhone or iPad, supporting various file formats. With this app, users can view and interact with 3D models, take measurements, run reports, and share feedback with their team, making it a perfect tool for on-the-go collaboration and design review.

🔧 Utilities
(1)