Best 3D File Viewer Apps

184+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated July 2026

Out of 184+ 3d file viewer apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top 3D File Viewer Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
13D File Viewer: OBJ STP & more3D File Viewer: OBJ STP & moreFree4.5★ (48)NoYesSep 2026
23D Model Viewer - AR & Print3D Model Viewer - AR & PrintFree4.4★ (338)NoYesSep 2026
3STL Simple ViewerSTL Simple ViewerFree4.3★ (866)YesYesSep 2026
4Autodesk FusionAutodesk FusionFree4.5★ (4.1K)NoNoAug 2026
53D GO | 3D Printing Models3D GO | 3D Printing ModelsFree4.7★ (3.9K)NoYesSep 2026
6DWG FastView-CAD Viewer&EditorDWG FastView-CAD Viewer&EditorFree4.5★ (1.1K)YesYesSep 2026
73D Model Viewer - AR View3D Model Viewer - AR ViewFree4.2★ (328)YesYesAug 2026
8SketchUp - 3D ModelingSketchUp - 3D ModelingFree4.5★ (18K)NoYesSep 2026

Top Picks for 3D File Viewer

3D File Viewer: OBJ STP & more#1

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

STP STL OBJ FBX GLTF & More
Editor's Choice
🔧 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.

3D Model Viewer - AR & Print#2

3D Model Viewer - AR & Print by Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.

Simulate 3D Printing and AR
Strong Contender
📊 Productivity
4.4😞(338 ratings)
FreeIn-App Purchases
3D Model Viewer - AR & Print screenshot 1
3D Model Viewer - AR & Print screenshot 2
3D Model Viewer - AR & Print screenshot 3

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.

What We Love

  • 👍 Easy to use
  • 👍 Nice app design
  • 👍 Simple and well-designed
  • 👍 Quick viewing of models

Room to Improve

  • 👎 Only one free model import
  • 👎 Paywall for more models
  • 👎 Models shown at incorrect scale
STL Simple Viewer#3

STL Simple Viewer by Victor Bovio

View 3D STL & 3MF CAD models
Worth Considering
📊 Productivity
4.3😞(866 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

  • 🚀 Simple and intuitive viewer
  • 👍 Useful viewing options
  • 💡 Supports multiple file formats

Room to Improve

  • 🐛 Frequent crashes
  • 🔋 High battery consumption
  • 🚨 Excessive and intrusive ads

More 3D File Viewer apps to explore

FAQ about 3D File Viewer

What are the best 3d file viewer apps for iPhone?
3D File Viewer: OBJ STP & more tops our 3d file viewer apps ranking as of July 2026, with a 4.5-star average from 48 App Store ratings, and it's free to download.
Yes — 20 of the top 3d file viewer apps we rank are free to download, including 3D File Viewer: OBJ STP & more and 3D Model Viewer - AR & Print.
3D File Viewer: OBJ STP & more has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 184+ 3d file viewer apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
3D File Viewer supports over 20 popular 3D file formats, including STL, OBJ, FBX, GLTF, PLY, 3DS, DAE, STP, IGES, IFC, 3MF, AMF, BIM, BREP, FCSTD, 3DM, OFF, and WRL.
3D File Viewer offers two subscription plans to remove ads: a monthly plan for $3.99 and an annual plan for $29.99.

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