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i3D Viewer

By MeshForm Solutions Inc.

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i3D Viewer is a highly versatile app for viewing 3D models. It features an intuitive and easy-to-use multi-touch user interface to view OBJ, 3DS, STL, PLY, OFF & XYZ models.

Main Functions:
- OBJ, 3DS Model Viewing: support vertex colors, basic materials and texture maps
- STL Model Viewing: CAD models, models for 3D printing, and 3D scanned models
- PLY, OFF, XYZ Model Viewing: 3D scanned point cloud data
- Model Packaging Formats: .zip .rar .7z .tar .tgz .gz
- Notable Features: auto-spinning, full screen mode, and motion-sensing gestures
- Model Input: iTunes File Sharing, email attachment, and website download
- Integrated Dropbox/OneDrive: directly access models in your Dropbox/OneDrive
- Model Output: export currently loaded 3D model and its screen snapshots

Important Note:
i3D Viewer is free to download and many of its functions are free to use. However, some functions are not free. Please refer to In-App Purchases for the paid functions.

For more information, please visit:

What's New in Version 1.5.1

- .tar & .tgz model packaging formats
- Minor bug fixes


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iPad Screenshot 1
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Customer Reviews

Nice model viewer for your phone

I teach others how to use 3D modeling software for use with 3D printers and have been looking for a way to view STL files when I am away from my computer. This app makes it easy to look over the emailed design and assist my students when they have a design issue. Thank you!

Nice STL viewer!

I tried two other viewers and they both had issues. Either wouldn't be able to display the curved surfaces well or didn't didn't properly shade the adjacent surfaces so that you could distinguish between them. This one displays all my models perfectly! Exactly what I need.


This app won't open any file unless you pay for it. I have nothing against paid apps, and/or the ability to upgrade to remove ads, but this app advertises as free then requires you to pay just to open a file. This is misleading.

i3D Viewer
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Utilities
  • Updated:
  • Version: 1.5.1
  • Size: 13.6 MB
  • Languages: English, Arabic, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
  • Seller:

Compatibility: Requires iOS 5.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. OBJ Model Viewing$0.99
  2. Dropbox Integration$0.99
  3. 3DS Model Viewing$0.99
  4. Model Output$1.99
  5. OneDrive Integration$0.99
  6. Donate$0.99
  7. Donate$4.99
  8. Donate$2.99

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