Best Gltf Viewer Apps

189+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated June 2026

Khronos glTF Viewer is the household name in gltf viewer, but it's far from the only option. We track 189+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Gltf Viewer

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(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.

DWG FastView-CAD Viewer&Editor#3

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

* Support 2D/3D CAD formats
Worth Considering
📊 Productivity
4.4😐(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 Gltf Viewer apps to explore

4
EXIF Viewer LITE by Fluntro
EXIF Viewer LITE by Fluntro
EXIF Viewer LITE by Fluntro
Photo GPS location,Camera info
Free

View, edit, and remove EXIF metadata from your photos. This app displays detailed camera information, allows customization of displayed tags, and offers options to remove location data or the entire EXIF set. It also includes a map view and a Photos Extension for easy access.

Remove EXIF metadata including GPS locationDisplay detailed EXIF tags (ISO, Shutter Speed, etc.)Zoom photos without losing clarity
📷 Photo & Video
(596)
free
5
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
6
ZETSU by Orion
ZETSU by Orion
ZETSU by Orion
ZETSU Reader
Free

This modular application enables developers to create and share content modules that can display images and text. It offers a customizable reading experience with features like favorites, categorization, and dynamic UI adjustments.

Custom Text ReaderCustom Image ViewerFavorites management
🔧 Utilities
(1.2K)
free with in-app purchases
7
STL File Viewer Pro
STL File Viewer Pro
STL File Viewer Pro
Simplest Way To View STL Files
Free

Easily view, rotate, and inspect 3D STL files on your iPhone or iPad. Load models instantly from various sources for 3D printing, design review, or engineering inspection.

Instant STL file loadingFull 360° rotation and zoomSharp detail rendering
🛠️ Developer Tools
(50)
free with in-app purchases
8
FileBrowser: Documents Manager
FileBrowser: Documents Manager
FileBrowser: Documents Manager
File Explorer & Media Player
$7.99

Access and manage files across your home computers, network drives, and cloud storage. Upload, download, copy, and edit documents directly from your device, with built-in viewers for various file types and streaming capabilities.

Connect to computers, NAS, and cloud storageUpload, download, copy, and move filesMulti-tabbed browsing and split-screen support
🔧 Utilities
(5.6K)
paid
9
Model View 3D - OBJ viewer
Model View 3D - OBJ viewer
Model View 3D - OBJ viewer
Wavefront OBJ file viewer
Free

View 3D models, including textured OBJ files, with adjustable camera controls. Load your own models via iTunes File Sharing and customize backgrounds for presentations or sharing.

View built-in 3D modelsLoad custom OBJ files via iTunesToggle diffuse, normal, and specular textures
🎬 Entertainment
(12)
free
10
Castle Model Viewer
Castle Model Viewer
Castle Model Viewer
Viewer for 3D models
Free

View and interact with a wide range of 2D and 3D model formats. Explore models, play animations, and save screenshots. Supports various file types including glTF, X3D, and OBJ, with options to open ZIP archives containing models and textures.

Supports glTF, X3D, VRML, IFC, Spine JSON, and moreOpen ZIP files with models and texturesChange navigation types (walk, fly, examine, 2D)
🎨 Graphics & Design
(2)
free
11
Readme - Text Viewer
Readme - Text Viewer
Readme - Text Viewer
Simple text viewer
Free

This app offers a streamlined experience for viewing text files, removing all extraneous features. It allows quick access to documents from cloud storage services and supports compressed files. Users can customize their reading experience with options for line spacing, themes, font size, and paging animation.

Cloud file downloads (iCloud, Google Drive, Dropbox, OneDrive)iTunes file uploadCompressed file support (zip)
📚 Books
(1.9K)
free with in-app purchases
12
GLB File Viewer
GLB File Viewer
GLB File Viewer
by Smart Cube Labs Co., Ltd.
Free
📊 Productivity
(0)
13
STEP Viewer
STEP Viewer
STEP Viewer
Fast STEP File Viewer
Free
📊 Productivity
(0)
14
Browser & File Manager
Browser & File Manager
Browser & File Manager
by 书穗 林
Free

This app combines a web browser, download manager, and file manager with built-in viewers for photos and documents. It allows for offline web page saving, background downloading, archive extraction, and secure access with a passcode.

Integrated web browser with multi-page supportDownload manager with background downloading and resume capabilityFile manager with folder support and archive extraction
🔧 Utilities
(301)
free
15
Infuse
Infuse
Infuse
An elegant video player
Free

A versatile video player that supports a vast array of formats and streaming options. Enjoy smooth playback, HDR, and Dolby audio, with integrated subtitle downloads and Trakt sync. Stream content from various devices and cloud services without conversion.

Plays virtually any video formatStream from Mac, PC, NAS, and cloud servicesSupports HDR, Dolby Vision, and Dolby/DTS audio
🎬 Entertainment
(28K)
free with in-app purchases
16
CNC Model Viewer
CNC Model Viewer
CNC Model Viewer
by CHANCELLOR G KREMER
Free
$2.99 | 100% OFF

This application allows engineers, machinists, and designers to view and inspect complex 3D CAD models on iOS devices. It supports a wide range of file formats and offers tools for measurement, material assignment, and weight calculation, all while operating fully offline.

Supports STEP, IGES, STL, OBJ, glTF, GLB, PLY, VRML, BREP formatsPrecise measurement of dimensions, angles, and lengthsMaterial assignment and weight calculation
📊 Productivity
(3)
free with in-app purchases
17
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
CAD FastView: DWG Viewer
DWG Viewer - DWG/DXF Reader
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
(33)
freemium
18
Zip Browser
Zip Browser
Zip Browser
ZIP, Rar, PDF, 7z, ODT viewer
Free

This app allows you to view and extract content from various archive and document formats, including ZIP, RAR, PDF, and Office files. It functions as a file manager, letting you organize, sort, save, and share your files easily. Access password-protected files and preview media directly within the application.

View ZIP and other archive formatsExtract content from archivesAccess PDF and Office documents
🔧 Utilities
(12)
free with in-app purchases
19
SpeedLight Viewer
SpeedLight Viewer
SpeedLight Viewer
Mobile viewer for Second Life
$4.99

Access the Second Life virtual universe from your mobile device. This lightweight viewer allows you to log in, chat with residents via voice and text, manage your friends, and explore the world. It synchronizes messages across devices and offers offline access to chat history.

Cross-platform compatibilityWebRTC voice chatSecond Life 3D world exploration
🌐 Social Networking
(208)
free
20
Quick STL Viewer
Quick STL Viewer
Quick STL Viewer
by KEAT MEN TANG
Free

Instantly open and preview 3D STL files with a smooth, responsive interface. Explore models by rotating and zooming, switch to wireframe mode, and customize colors for better visibility. This app offers a distraction-free viewing experience for checking models or print details on the go.

Instant STL file openingSmooth 3D model explorationRotate and zoom functionality
🔧 Utilities
(7)
free with in-app purchases