Best Stp Viewer Apps

206+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated June 2026

STL Simple Viewer is the household name in stp viewer, but it's far from the only option. We track 206+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Top Picks for Stp Viewer

STL Simple Viewer#1

STL Simple Viewer by Victor Bovio

Quickly view 3D STL CAD models
Editor's Choice
πŸ“Š 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

  • πŸš€ Simple and intuitive viewer
  • πŸ‘ Useful viewing options
  • πŸ’‘ Supports multiple file formats

Room to Improve

  • πŸ› Frequent crashes
  • πŸ”‹ High battery consumption
  • 🚨 Excessive and intrusive ads
STL File Viewer Pro#2

STL File Viewer Pro by Andeesh Mehdi Syed

Simplest Way To View STL Files
Strong Contender
πŸ› οΈ Developer Tools
4.4(50 ratings)
FreeAdsIn-App Purchases
#64in Developer Tools
STL File Viewer Pro screenshot 1
STL File Viewer Pro screenshot 2
STL File Viewer Pro screenshot 3

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.

Autodesk Fusion#3

Autodesk Fusion by Autodesk

Worth Considering
πŸ“Š Productivity
4.5😐(4.1K ratings)
Free
Autodesk Fusion screenshot 1
Autodesk Fusion screenshot 2
Autodesk Fusion screenshot 3

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.

What We Love

  • πŸš€ Great for showing designs
  • πŸ‘ Easy to use and understand
  • πŸ’‘ Powerful CAD/CAM capabilities
  • πŸš€ Convenient for collaboration

Room to Improve

  • πŸ› Crashes and login issues
  • πŸ‘Ž Limited functionality compared to desktop version
  • πŸ‘Ž Constantly logs out

More Stp Viewer apps to explore

4
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
πŸ”§ Utilities
(7)
free with in-app purchases
5
STL Master
STL Master
STL Master
STL File Viewer + AR & Sharing
Free

View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.

STL file viewingAugmented reality (AR) modeInstant screenshots
πŸ”§ Utilities
(49)
free
6
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
πŸ“Š Productivity
(320)
free with in-app purchases
7
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
πŸ”§ Utilities
(3.8K)
free with in-app purchases
8
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
πŸ”§ Utilities
(14)
free
9
3D Model Viewer: STL & USDZ
3D Model Viewer: STL & USDZ
3D Model Viewer: STL & USDZ
View 3D USDZ and CAD STL, PLY
Free

Easily view and interact with 3D models in various formats like USDZ, STL, and OBJ. Explore your designs with intuitive gestures, high-performance rendering, and augmented reality capabilities. Record animations of your models for sharing.

View USDZ, STL, OBJ, PLY filesIntuitive gesture controlsHigh-performance rendering
πŸ“Š Productivity
(4)
free with in-app purchases
10
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 360Β° 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
πŸ“· Photo & Video
(43K)
free with in-app purchases
11
STL Viewer Β· Model File Reader
STL Viewer Β· Model File Reader
STL Viewer Β· Model File Reader
Fast STL File View & 3D Reader
Free
πŸ“Š Productivity
(2)
12
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
πŸ”§ Utilities
(241)
free with in-app purchases
13
3D File Viewer: OBJ STP & more
3D File Viewer: OBJ STP & more
3D File Viewer: OBJ STP & more
STP STL OBJ FBX GLTF & More
Free

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.

Supports over 20 3D file formatsFast and smooth 3D file viewingZoom, rotate, and pan with touch controls
πŸ”§ Utilities
(35)
free with in-app purchases
14
Scaniverse - 3D Scanner
Scaniverse - 3D Scanner
Scaniverse - 3D Scanner
Scan & share your world in 3D
Free

Capture your surroundings in high-quality 3D using your phone. Process scans directly on your device for privacy and speed. Share your creations globally on a map or export them for further use in 3D software.

On-device 3D Gaussian splattingFast and unlimited scanningHigh-fidelity detail capture
πŸ“· Photo & Video
(11K)
free
15
iRhino 3D
iRhino 3D
iRhino 3D
3D Viewer & Scanner
Free

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.

3D model viewingTouch navigation (pan, zoom, orbit)Cloud storage integration
πŸ“Š Productivity
(72)
free
16
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
17
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
πŸ“Š Productivity
(50)
free with in-app purchases
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
πŸ“Š Productivity
(6.3K)
freemium
19
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
πŸ“Š Productivity
(1)
freemium
20
Viewer3D
Viewer3D
Viewer3D
View STL, STEP, OBJ & 3DM
$0.99
πŸ”§ Utilities
(0)