3D Model Viewer vs PDF Reader Pro
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!
PDF Reader Pro
Experience PDFs in an extraordinary 3D view with this pro PDF reader. It offers a unique 3D book-like reading experience with light and dark modes, and supports both portrait and landscape orientations. Easily share your documents with other applications.
- 3D PDF reading experience
- Light and Dark Mode support
- Portrait and Landscape orientation
- Open Source
- Share PDFs to other apps
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Name says 3D it is a pro PDF viewer in many ways and give you extra ordinary 3D experience. Compared to other PDF viewers, PDF Viewer 3D gives great user experience and with dark and light Mode Key features : - Read Pdf Like 3D book. - Give you 3D experience. - Open Source. - Portrait and Landscape both mode supported. - Support Light-Dark Mode. - Share Pdf into Other apps like WhatsApp, Facebook and many more.
Screenshots
Verdict
The clearest difference is rating: 3D Model Viewer at 4.2 against PDF Reader Pro's 3.6. 3D Model Viewer also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (328 vs 8). PDF Reader Pro's advantage is review sentiment (100% vs 59%) and in-app purchases (none vs 5). On price, ads and device support 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. PDF Reader Pro asks for nothing beyond the download.
3D Model Viewer holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: 3D Model Viewer has 328 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 59% of 3D Model Viewer's written reviews are positive against 100% of PDF Reader Pro's, so the app with the better star average is not the one people write more warmly about.
3D Model Viewer ships an update every 3 weeks, PDF Reader Pro every 4 months. Both last shipped on October 14, 2026.
| Parameter | 3D Model Viewer | PDF Reader Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (328 ratings) — better | 3.6 (8 ratings) |
| Positive reviews | 59.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 328 — better | 8 |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 健 钟 | Nirav Parmar |
Customer experience
3D Model Viewer
PDF Reader Pro
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
PDF Reader Pro
Not enough reviews yet to summarise bugs or requests.
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
PDF Reader Pro
No in-app purchases
Questions
Is 3D Model Viewer free?
Is PDF Reader Pro free?
Which has better reviews, 3D Model Viewer or PDF Reader Pro?
Do 3D Model Viewer or PDF Reader Pro have ads?
Which is updated more often, 3D Model Viewer or PDF Reader Pro?
Other comparisons
