Best Gnacad Apps

250+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated July 2026

The best gnacad apps on iPhone average 3.9★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Compare top Gnacad Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CAD Viewer EditorCAD Viewer EditorFreeNoNoAug 2026
2AutoCADAutoCADFree4.4★ (6.3K)NoYesAug 2026
3DWG FastView-CAD Viewer&EditorDWG FastView-CAD Viewer&EditorFree4.5★ (1.1K)YesYesAug 2026
4ZWCAD Mobile - Mobile CADZWCAD Mobile - Mobile CADFree4.3★ (302)NoYesAug 2026
5CAD Reader-View & Measure DWGCAD Reader-View & Measure DWGFree4.0★ (22)YesYesAug 2026
6CADrawCADrawFree2.7★ (9)NoYesJul 2026
7CAD FastView: DWG ViewerCAD FastView: DWG ViewerFree4.0★ (50)NoYesAug 2026
8CAD Drawing Designer 3DCAD Drawing Designer 3DFree3.7★ (44)YesYesAug 2026

Top Picks for Gnacad

AutoCAD#2

AutoCAD by Autodesk Inc.

DWG Viewer & Editor
Strong Contender
📊 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

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.

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#3

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

* Support 2D/3D CAD formats
Worth Considering
📊 Productivity
4.5😐(1.1K 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

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.

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

More Gnacad apps to explore

4
ZWCAD Mobile - Mobile CAD
ZWCAD Mobile - Mobile CAD
ZWCAD Mobile - Mobile CAD
DWG viewer and editor
Free

This application allows users to view, edit, and share CAD drawings on their mobile devices. It supports multiple file formats, offers precise measurement tools, and includes a wide range of editing and drawing functions. It's designed for professionals in architecture, engineering, and construction.

View and edit DWG filesSupports DWF, DXF, PDF formatsPrecise measurement tools
📊 Productivity
(302)
free with in-app purchases
5
CAD Reader-View & Measure DWG
CAD Reader-View & Measure DWG
CAD Reader-View & Measure DWG
DWG & PDF viewer
Free

This application allows users to view, measure, and annotate CAD files and PDFs. It supports multiple drawing formats and offers tools for collaboration, including image and voice annotations. Convert PDFs to CAD and manage layers with advanced features.

View DWG, DXF, and PDF filesScale drawing and measure area/lengthAdd image, voice, and text annotations
📊 Productivity
(22)
free with in-app purchases
6
CADraw
CADraw
CADraw
CAD Drawing tools
Free

Create and edit precise technical drawings with a variety of tools. Supports layers, annotations, and export to common formats like PDF and DXF. Ideal for detailed design work on mobile devices.

Draw lines, circles, arcsShape editing and modificationAngle constraints
📊 Productivity
(9)
free with in-app purchases
7
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
DWG,DXF,DWT Viewer -CAD viewer
Free

View, convert, and print CAD drawings on your mobile device. Supports DWG, DXF, and PDF formats with iCloud sync and Wi-Fi printing. Ideal for architects, engineers, and construction professionals.

Fast DWG/DXF viewingConvert drawings to PDFWi-Fi printing
📊 Productivity
(50)
freemium
8
CAD Drawing Designer 3D
CAD Drawing Designer 3D
CAD Drawing Designer 3D
Realize your project in 3D
Free

Design and plan your projects in 3D with a comprehensive library of construction components and intuitive CAD tools. Easily create, edit, and dimension drawings, import various 3D data formats, and generate realistic visualizations. Export material lists for efficient implementation.

3D construction and 2D viewsComponent library (wood, steel, concrete)Drag & drop 3D object insertion
🎨 Graphics & Design
(44)
free with in-app purchases
9
ArcSite: Floor Plans and CAD
ArcSite: Floor Plans and CAD
ArcSite: Floor Plans and CAD
Easily Design, Sketch and Draw
Free

This app allows contractors to create accurate floor plans and site layouts directly on-site. It streamlines the process of planning remodels, running takeoffs, generating professional proposals, and collecting payments, all from a mobile device.

Sketch accurate floor plans on-sitePlan remodels and renovationsRun takeoff and generate material lists
📊 Productivity
(8.8K)
free with in-app purchases
10
DWG Tools - View & Convert DWG
DWG Tools - View & Convert DWG
DWG Tools - View & Convert DWG
View and convert CAD drawings
Free

This application allows users to view and convert various CAD file formats, including DWG, DXF, and PDF. It offers robust drawing management, gesture-based view manipulation, and batch conversion capabilities for efficient workflow.

View DWG, DXF, DWF, PDF, SVG filesGesture-based view manipulationLayer management
📊 Productivity
(7)
freemium
11
QuikCad
QuikCad
QuikCad
Draw Projects in Minutes
Free
📊 Productivity
(0)
12
DWG Reader Converter PDF CAD
DWG Reader Converter PDF CAD
DWG Reader Converter PDF CAD
DWG File Reader Convert CAD
Free

Easily view, convert, and share DWG files with this comprehensive tool. Supports multiple output formats like PDF, CAD, and images. Offers batch processing and custom conversion settings for efficient workflow.

Multi-format DWG conversion (PDF, CAD, SVG, JPEG, PNG, TIFF)High-quality DWG viewing with zoom, pan, rotate, and layer managementBatch processing for multiple file conversions
🔧 Utilities
(17)
free with in-app purchases
13
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 view, create, annotate, and modify DWG drawings on mobile devices. Free users can access viewing and basic annotation tools, while subscribers unlock hundreds of advanced creation and editing features.

View, create, and modify DWG drawingsAnnotate with text, dimensions, and revision cloudsSynchronize files with cloud storage
📊 Productivity
(143)
free with in-app purchases
14
CAD Plus
CAD Plus
CAD Plus
for DWG
Free

This app allows users to conveniently open, manage, and edit DWG drawing files. It supports various DWG versions and offers tools for modifying layouts, layers, and entities, as well as measuring distances and areas.

Open and manage DWG files (R14-2018)Drag and process large drawingsModify properties of layouts, layers, and entities
🎨 Graphics & Design
(2)
subscription
15
CAD HD
CAD HD
CAD HD
concept drafting sketch, study
Free

Create intricate patterns and digital art with a variety of professional coloring styles. The generated images are suitable for use in designs, reports, social media, and documents. Enjoy a relaxing and creative digital experience on your iPhone and iPad.

Professional coloring stylesPattern and paint creationZoom-in and zoom-out for detail
📊 Productivity
(4)
free with in-app purchases
16
CAD快速看图-dwg手机快速看图,设计图纸工程建筑
CAD快速看图-dwg手机快速看图,设计图纸工程建筑
CAD快速看图-dwg手机快速看图,设计图纸工程建筑
Autocad、2D图纸、3D图纸、建筑工程测量测距
Free

Easily view and annotate DWG files, including 2D and 3D drawings. Convert drawings to PDF or images, scan paper documents, and transfer files between PC and mobile devices. Offers cloud storage and comparison tools for multiple drawings.

View 2D and 3D DWG drawingsAnnotate and mark up drawingsConvert DWG to PDF or image
📊 Productivity
(4)
free with in-app purchases
17
CAD Import - For PDF to DWG
CAD Import - For PDF to DWG
CAD Import - For PDF to DWG
Convert PDF, DWF, DGN to CAD
Free

Easily convert vector graphics from PDF, DWF, and other formats into CAD files like DWG and DXF. Save time by avoiding manual redrawing of designs. Supports batch conversion and previewing of files.

Convert PDF, DWF, DAE, DGN to DWG, DXF, DWFConvert DXF/DWG to different DWG/DXF versionsConvert vector graphics to CAD files
🎨 Graphics & Design
(0)
free with in-app purchases
18
OpenDXF
OpenDXF
OpenDXF
DXF Viewer & Dimensioning
Free
🔧 Utilities
(0)
19
MimoCAD
MimoCAD
MimoCAD
by Mark Tomlin
Free
🏥 Medical
(0)
20
AI CAD Generator-Auto Draw CAD
AI CAD Generator-Auto Draw CAD
AI CAD Generator-Auto Draw CAD
Auto Trace Drawings to DWG
Free
🎨 Graphics & Design
(0)

FAQ about Gnacad

Are there free gnacad apps for iPhone?
Yes — 20 of the top gnacad apps we rank are free to download, including CAD Viewer Editor and AutoCAD.
CAD Viewer Editor has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 250+ gnacad apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.