3D Model Viewer vs CPD Mastery
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!
CPD Mastery
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Your CPD Tracker. Smarter. Simpler. More rewarding. Built for lifelong learners and professionals who need more than a spreadsheet — this app helps you document, track, and earn CPD credit hours with ease. Plus, it’s audit-ready when you need it most. Whether you're logging daily reflections, sharing research, or planning your next learning goals — everything is stored, synced, and secure in one sleek mobile App. Key Features: - Log CPD activities in minutes - Record learnings, reflect on research papers, and document your self-directed studies. - Be audit-ready anytime - Download detailed CPD reports, and store verified certificates — all organized and ready for review. - Share original research. When others download your work, you earn commissions as passive income. - Track your progress live Visualize your yearly CPD goals, sort activities by type, and monitor your hours as you go. Terms of Use (EULA): https://cpdmastery.com/terms-and-conditions/
Screenshots
Verdict
The clearest difference is ads: CPD Mastery at none against 3D Model Viewer's shown. On price, update cadence, in-app purchases 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 and CPD Mastery sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
3D Model Viewer ships an update every 3 weeks, CPD Mastery monthly. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.
| Parameter | 3D Model Viewer | CPD Mastery |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (328 ratings) — better | — |
| Positive reviews | 59.2% of reviews | — |
| Number of ratings | 328 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 28 MB | 40 MB |
| Age rating | 4+ | 17+ |
| Developer | 健 钟 | Craig Bartlett |
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
CPD Mastery
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
CPD Mastery
- CPD Mastery Premium$9.991 Month
Questions
Is 3D Model Viewer free?
Is CPD Mastery free?
Do 3D Model Viewer or CPD Mastery have ads?
Which is updated more often, 3D Model Viewer or CPD Mastery?
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