3D Model Viewer vs STL Simple Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Model Viewer
View and interact with various 3D model formats in both AR and 3D modes. This intuitive tool supports local and cloud documents, custom backgrounds, and shadow casting. Easily import models via multiple methods and share your creations.
- AR and 3D viewing modes
- Supports numerous 3D file formats
- Local and cloud document integration
- Customizable backgrounds and shadows
- Model information display (size, volume, etc.)
- Multiple import and sharing options
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An advanced 3D model viewer for viewing all kinds of 3D models. Featuring AR viewing, custom rotation pivot and exploded assembly view. Preview mesh models including OBJ, STL, STP, DAE, PLY and Blend, supporting rendering, animation playback, 3D printing and model data inspection. Features 1. Support AR and 3D viewing modes. 2. Customizable background and environment lighting. 3. Animation preview for GLB, GLTF, FBX and more formats. 4. Real-time shadow casting. 5. Local & cloud document management (iCloud, DropBox, etc.). 6. Set custom rotation pivot point for model viewing. 7. Exploded view function to separate assembly parts. 8. Wide format support: STP, STEP, BERP, IGES, 3DS, OBJ, GLB, GLTF, STL, SLC, 3MF, PLY, OFF, DAE, Blend, FBX, USDZ, MD2, MD3, MD5, MDL, MS3D, DXF, X Read packaged archives containing models, MTL files and textures: ZIP, RAR. 9. Multiple import ways: iTunes File Sharing, AirDrop, iCloud, email attachments, web download. 10. File sharing via AirDrop or Email. 11. Capture, share and save screenshots. 12. Auto rotation and full-screen viewing mode. 13. Display model metrics: dimensions, volume, surface area, vertex count and triangle count. 14. Folder management in the file browser. If you have any suggestions or questions, please email belighten@gmail.com. Thank you for your support!
STL Simple Viewer
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
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STL Simple Viewer is a great app to quickly view 3D STL & 3MF files and export them to the most commonly used CAD formats. Features: - Supports STL files both ASCII and Binary formats. - Supports 3MF files. - Load STL and 3MF files directly from ZIP archives. - Export to DXF, OBJ, DAE, PLY and USD. - Rotate, pan, and zoom models with intuitive touch controls. - Measure distances between points within your model. - Configure rendering options: faces, edges, points, background and transparency. - Render using a clipping plane (useful for viewing model interiors). - View models in Orthographic or Perspective mode. - Obtain model information including triangle count, bounding box, surface area, and volume. Privacy Policy: https://www.boviosoft.com/apps/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For support or questions: support@boviosoft.com
Screenshots
Verdict
3D Model Viewer and STL Simple Viewer both sit at 4.2 stars, but that hides the real split: 59% of 3D Model Viewer's written reviews are positive against 17% of STL Simple Viewer's. 3D Model Viewer also leads on update cadence (every 3 weeks vs every 20 months) and iOS requirement (15.6 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 3D Model Viewer sells 5 one-off in-app purchases and STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.2 for 3D Model Viewer against 4.3 for STL Simple Viewer. Both are backed by a comparable volume of ratings — 328 and 866 respectively. Written reviews are what separate them: 59% of 3D Model Viewer's written reviews are positive against 17% of STL Simple Viewer's.
3D Model Viewer ships an update every 3 weeks, STL Simple Viewer every 20 months. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.
| Parameter | 3D Model Viewer | STL Simple Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (328 ratings) | 4.3 (866 ratings) — better |
| Positive reviews | 59.2% of reviews — better | 17.2% of reviews |
| Number of ratings | 328 | 866 — better |
| Update frequency | Every 3 weeks — better | Every 20 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 19 MB |
| Age rating | 4+ | +4 |
| Developer | 健 钟 | Victor Bovio |
Customer experience
3D Model Viewer
STL Simple Viewer
User reviews
3D Model Viewer
From 328 App Store ratingsWhat we love
- 👍 Great for viewing 3D models
- 🚀 Fast model loading
- 🔒 Supports many file formats
Room to improve
- 🐛 Frequent crashes and errors
- 💸 Intrusive ads and paywalls
- 🤯 Difficult to use interface
- 🚫 Cannot open large files without paying
STL Simple Viewer
From 866 App Store ratingsWhat 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
- 🔍 Limited functionality for larger files
Bugs and requests
3D Model Viewer
Reported bugs
3 issues- App crashes when trying to delete models
- Cannot open .3mf and .glb files
- Texture and shading issues with some models
Requested features
4 requests- Add support for more 3D file formats
- Improve model rendering quality
- Implement better file management options
- Provide more customization and control over model view
STL Simple Viewer
Reported bugs
3 issues- App crashes when opening larger STL files
- Inability to open some file formats
- Ads continue to appear even after paying for ad removal
Requested features
3 requests- Add ability to save color/lighting settings
- Improve stability and reduce crashes
- Provide an ad-free paid version
In-app purchases
3D Model Viewer
- Remove Ads$1.99
- Model & Screenshot Output$1.99
- Background from Album$1.99
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- Large File Model$1.99
- All Features$5.99
STL Simple Viewer
- Pro version (1 week plan)$0.997 Days
- Pro version (1 month plan)3 Days trial$1.991 Month
- Remove Ads$2.99
- Export to OBJ, DAE, DXF, PLY$3.99
Questions
Is 3D Model Viewer free?
Is STL Simple Viewer free?
Which has better reviews, 3D Model Viewer or STL Simple Viewer?
Do 3D Model Viewer or STL Simple Viewer have ads?
Which is updated more often, 3D Model Viewer or STL Simple Viewer?
Other comparisons
