3D CAD Model Viewer vs 3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D CAD Model Viewer
Easily view, analyze, and share 3D CAD models and drawings from various file formats. Organize your models into a catalog for quick reference and access job information. Streamline your quoting process by leveraging past projects and profitability data.
- View models from any angle
- Apply bounding box for measurements
- Markup and annotate models
- Build a catalog of models
- Translate models to STL, STEP, 3D PDFs
- Share models via email or Slack
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View, analyze, markup, translate and share any 3D CAD model or drawing including dwg, catia, x_t, stp, igs files and more. Files can be opened directly from email, Dropbox or Google Drive. Once you upload a model into your app, you can easily: - View the model from any angle, zoom in and rotate - Apply a bounding box for quick measurements - Markup and make annotations - View job information on models - Email the model directly from the app. Recipients can view and rotate the model from their email - no need to create their own account. Links to the model can also be sent via Slack or any other app. - Build a catalog of models for future reference - Log into the free app from your computer and translate your models from any format into stl, step and 3D pdfs. We help machine shops increase profitability by cataloging and enabling instant search of your library of previous work, capturing all of your quotes and models in one place for immediate recall. Instantly know if you won the previous bid, and if so, how profitable the job was. With that formerly tribal knowledge captured, cataloged and searchable, you’ll quote faster, work more efficiently, and manufacture more profitably. Most organizations still develop quotes and estimates semi-manually. They lack the tools to view a CAD drawing or model, instantly search their catalog for previous models and quotes to use as templates, and easily see if those previous models were profitable. It’s the 21st century, but most still quote like it’s 1995. Machine Research provides the automation tools to catalog your models for instant search based on desired parameters. From the catalog, you’ll have all the job information associated with making the part that’s easily accessible and sharable for the whole team. Machine Research takes the knowledge from your employees’ heads, and catalogs and automates it to make your quoting process faster and more efficient, and your business more profitable.
3D
View and navigate 3D models in various formats like OBJ, STL, DAE, and PDF. Easily zoom, pan, and rotate models using multi-touch gestures. Import files directly from cloud storage services like Dropbox and Box.
- View 3D models in OBJ, STL, DAE, and PDF formats
- Multi-touch gestures for zoom, pan, and rotate
- Import models from Dropbox and Box
- Supports meshes and colors
- Open password-protected PDF files
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View and Navigate 3D models stored in OBJ, STL, Collada (.dae) (Xcode Compressed ) and PDF (PRC) formats.You can easily zoom, pan and rotate 3D model with multi-touch gestures. The application recognises various file extension and you can choose to load those files into this application directly from other applications like Dropbox and Box. 3D Viewer can also detect the ZIP files as the texture and material files for OBJ and DAE can be clubbed. Opening the ZIP will list down all the supporting files in ZIP that can be opened. 3D Viewer is integrated with Box and Dropbox cloud storage allowing you to directly browse files on Box.com and Dropbox.com storage in the application itself. The sample 3D files are bundled with the application. 3D Viewer current version contains following features : - 3D PDF (.prc files), OBJ, STL and DAE ( Compressed ) model rendering - Multi-touch gestures like zoom, pan, rotate and fit to screen - Import models from Dropbox and Box cloud storage application. - Open password protected pdf files. - Easy file browsing for Box and Dropbox user (Box and Dropbox cloud storage is natively integrated with the application). - Supports meshes and colors.
Screenshots
Verdict
The clearest difference is rating: 3D CAD Model Viewer at 3.3 against 3D's 1.0. 3D CAD Model Viewer also leads on review sentiment (40% vs 0%) and update cadence (every 5 weeks vs every 5 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
3D CAD Model Viewer holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: 3D CAD Model Viewer has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 40% of 3D CAD Model Viewer's written reviews are positive against 0% of 3D's.
3D CAD Model Viewer ships an update every 5 weeks, 3D every 5 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.
| Parameter | 3D CAD Model Viewer | 3D |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (13 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 13 — better | 2 |
| Update frequency | Every 5 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 50 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Machine Research Corporation | ProtoTech Solutions and Services Pvt. Ltd. |
Customer experience
3D CAD Model Viewer
3D
In-app purchases
3D CAD Model Viewer
No in-app purchases
3D
No in-app purchases



