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STL Simple Viewer

STL Simple Viewer

View 3D STL & 3MF CAD models

866 ratings
152 reviews
With Ads
🔧 Utilities
📊 Productivity
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • January 11, 2020
  • August 8, 2026

Features

Developer

Victor Bovio
✨Promote your app ✨
STL Simple Viewer screenshot #1 for iPhone
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STL Simple Viewer screenshot #4 for iPhone
iphone
ipad
🧾$2.99 - $3.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐152
Reviews↘︎
📝25+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 1 year
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

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.

✓View ASCII and Binary STL files
✓Load STL from ZIP
✓Rotate, pan, and zoom
✓Orthogonal and Perspective modes
✓Model info (triangle count, bounding box)
✓Rendering options (faces, edges, transparency)
✓Clipping plane for interiors
Show original description

What users say

Summarized from real user reviews of STL Simple Viewer. Based on 866 reviews and a 4.3/5 average, it highlights the 3 positives and 4 negatives reviewers mention most about this Productivity app.

Positive things

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

Negative things

  • 🐛Frequent crashes
  • 🔋High battery consumption
  • 🚨Excessive and intrusive ads
  • 🔍Limited functionality for larger files
See all reviews
+1

What's New in STL Simple Viewer

2.1

August 8, 2026

* Reduced memory usage and faster loading for large STL files * Support for loading 3MF files * Added export to USD format * More options for Graphic Settings: * Option for Grid positioning * Option for gradient Background * Option for storing default settings * Reduced more Ad frequency * Bug fixes

More

Subscription plans

Pro version (1 week plan)

All Premium features for 1 week

$0.997 Days
How to cancel STL Simple Viewer subscription ⁉️
1

In-App Purchases

$2.99

Remove Ads

Remove Ads from the app.

User reviews

Most RecentHighest RatedLowest Rated

Mid

If you want to view an stl file. You can. If you want to search through a couple you’re gonna get ads. Not a good app. Not a bad one.
(=iceman=)(=iceman=)

Response from developer

Hello, Thanks for taking the time to leave a review. You may want to give version 2.0 a try, as it significantly improves the overall app experience. The frequency of ads has also been reduced, and several new features have been added. If you have any suggestions or feedback, I'd be happy to hear from you at: support@boviosoft.com

Too many ads

Ads crash app
hack4familyhack4family

Unfortunately it won’t load

It crashes when I try to load anything and doesn’t work
funnymachinefunnymachine

Pornographic ads

Are you kidding me dude
toffeecottoffeecot

Так се

Не открывает файлы большего размера, слетает
EVROMAKSEVROMAKS
See 147 more reviews

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User experience

🐞

Reported Bugs

3 issues

App crashes when opening larger STL files

Bug

Inability to open some file formats

Bug

Ads continue to appear even after paying for ad removal

Bug
✨

Requested Features

3 requests

Add ability to save color/lighting settings

Feature

Improve stability and reduce crashes

Feature

Provide an ad-free paid version

Feature

FAQ

What can I do with STL Simple Viewer?

STL Simple Viewer allows you to quickly view 3D STL CAD models. You can rotate, pan, and zoom to inspect the model from different angles. It also provides detailed information about the model and offers advanced rendering options.

What types of STL files does it support?

The app supports both ASCII and Binary STL file formats. You can also load an STL file directly from a ZIP archive, making it convenient to manage your models.

Is STL Simple Viewer free to use?

The application is free to download and use, but it does include in-app purchases and advertisements. These may offer additional features or an ad-free experience.

What kind of model information can I get?

You can obtain crucial information about your 3D model, including its triangle count, bounding box dimensions, surface area, and volume. This data is essential for analysis and further processing.

Can I view the interior of a model?

Yes, the app features a clipping plane option. This is particularly useful for viewing the interior structures of complex models without needing to see the entire object.