iRhino 3D vs STL Simple Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iRhino 3D
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 viewing
- Touch navigation (pan, zoom, orbit)
- Cloud storage integration
- Augmented Reality (AR) mode
- Integrated markup tool
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The official Rhino 3D viewer for iOS. View and present your work on your iPhone or iPad. Pan, zoom, and orbit with a tap or drag of your finger. Conveniently load models from your device or any cloud storage using a built-in file browser. Use the AR mode to see your model in space. Integrated markup tool lets you draw on top of a view.
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
The clearest difference is review sentiment: iRhino 3D at 55% against STL Simple Viewer's 17%. iRhino 3D also leads on in-app purchases (none vs 4) and ads (none vs shown). STL Simple Viewer's advantage is ratings volume (866 vs 80). On price, device support and iOS requirement 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. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. iRhino 3D asks for nothing beyond the download.
iRhino 3D holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: STL Simple Viewer has 866 ratings behind it against 80, so its average is the more settled of the two. Written reviews point the same way: 55% of iRhino 3D's written reviews are positive against 17% of STL Simple Viewer's.
iRhino 3D ships an update fortnightly, STL Simple Viewer every 20 months. The most recent releases landed on September 20, 2026 and September 23, 2026 respectively.
| Parameter | iRhino 3D | STL Simple Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (80 ratings) — better | 4.3 (866 ratings) |
| Positive reviews | 55.0% of reviews — better | 17.2% of reviews |
| Number of ratings | 80 | 866 — better |
| Update frequency | Fortnightly — better | Every 20 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 296 MB | 19 MB |
| Age rating | 4+ | +4 |
| Developer | Robert McNeel & Associates | Victor Bovio |
Customer experience
iRhino 3D
STL Simple Viewer
User reviews
iRhino 3D
From 80 App Store ratingsWhat we love
- 👍 Smooth and intuitive 3D model manipulation
- 🚀 Fast performance with complex models
- 📱 Great for client presentations and demos
- 💼 Useful for on-the-go model viewing
- 🔄 Good Dropbox integration
Room to improve
- 🐛 Frequent crashes on large files
- ❌ Limited to viewer functionality only
- 🚫 No native editing capabilities
- 📉 Poor LiDAR measurement accuracy
- 🔌 No iCloud Drive support
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
iRhino 3D
Reported bugs
15 issues- App crashes with large or complex files
- LiDAR measurements significantly inaccurate (off by ~2x)
- Cannot open local files without cloud storage
- Incompatibility with newer iOS versions
- App crashes during room scanning
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- Save functionality errors
- File browser integration issues
- Google Drive connection errors (App Transport Security)
- Models rendering in black after updates
- Crashes on iPad Pro with object scan mode
- Unable to export scans in desired formats
- App fails to open on certain device models
- File thumbnails not displaying
- Texture UVW mapping not preserved
- Room scan omits doors and windows as objects
Requested features
20 requests- Full native Rhino with Grasshopper support
- Real editing and modeling tools
- Wireframe and shaded view options
- Orthographic views (top, front, right)
- Texture and material support
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- Dimension measurement tools
- iCloud Drive integration
- Microsoft OneDrive support
- Gumball transform tool for rotation/scaling
- Annotation and markup tools
- Display mode settings
- Named views panel
- Zoom select tool
- Room scan with door/window preservation
- File thumbnails in library view
- Background color customization
- Ability to add rooms to existing scans
- Support for Rhino 6 and 7 files
- Stereo 3D view options
- Video recording of model walkthroughs
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
iRhino 3D
No in-app purchases
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 iRhino 3D free?
Is STL Simple Viewer free?
Which has better reviews, iRhino 3D or STL Simple Viewer?
Do iRhino 3D or STL Simple Viewer have ads?
Which is updated more often, iRhino 3D or STL Simple Viewer?
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