Model Viewer | CAD Viewer vs Kuu3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Model Viewer | CAD Viewer
View and inspect 3D model files with ease. Import various formats, manipulate the view with intuitive controls, and access basic model information on a clear workspace.
- 3D model inspection
- Import multiple file formats
- Rotate, pan, and zoom controls
- Toggle grid workspace
- View basic model details
Read full descriptionHide full description
Model Viewer is an app for opening and inspecting 3D model files on a clean grid workspace. Import supported files from Files, rotate, pan, zoom, reset the view, toggle the grid, and review basic model details. Supported formats include STL, GLB, GLTF, USD, USDA, USDC, USDZ, OBJ, PLY, DAE, ABC, and SCN. MODEL VIEWER PRO Viewing models is free. Model Viewer Pro unlocks rendered, mesh wireframe, edges, and X-ray modes, clipping planes, studio backgrounds and lighting, favorites, folders, and a saved view for every model. Model Viewer Pro is an optional auto-renewable subscription, available monthly or yearly. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://greatminds-create.com/legal/model-viewer/privacy/
Kuu3D
Read full descriptionHide full description
3D data, beautifully and clearly. Kuu3D is a 3D viewer for iPhone and iPad. It supports USDZ, OBJ, STL, glTF / GLB and PLY (point cloud). Open files from the Files app, AirDrop, or the Share sheet of other apps. EASY TO LOOK AT Operate with your fingertips. Rotate with one finger, pan and zoom with two, twist two fingers to tilt, double-tap to show the whole model. Switch between softly shaded MatCap materials to study the form itself. Sky, dusk, night, or sakura: choose a background to suit your mood and your data. Wireframe view to check the flow of the mesh. Drag the circle on screen to change the light direction freely. Change the field of view to adjust perspective. Turntable mode slowly rotates the model so you can take it all in. Grab the toolbar and move it to the top of the screen if you like. HANDY FOR CHECKING See dimensions. The unit is guessed from the file format and can be changed. Get notified when a model's face directions (normals) look reversed. Large files are displayed as smoothly as possible. SIMPLE AND PRIVATE Save your favorite files in the library. No network access. Your files never leave the device, and no personal data is collected. Almost every feature is free. The one-time purchase "Unlock All Features" removes the limits on the turntable (free users get a half turn) and the library size (free users can save 3 files). It is not a subscription. SUPPORTED FORMATS USDZ / USD, OBJ, STL, glTF / GLB, PLY (point cloud) Note: animation playback is not supported.
Screenshots
Verdict
The clearest difference is update cadence: Kuu3D at weekly against Model Viewer | CAD Viewer's every 2 weeks. On price, ads, 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. Model Viewer | CAD Viewer sells 2 in-app purchases, starting at $1.99 per month and Kuu3D sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Model Viewer | CAD Viewer ships an update every 2 weeks, Kuu3D weekly. Both last shipped on October 31, 2026.
| Parameter | Model Viewer | CAD Viewer | Kuu3D |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Astonish Innovations | Hirofumi Tanjo |
In-app purchases
Model Viewer | CAD Viewer
- Model Viewer Pro Monthly$1.991 Month
- Model Viewer Pro Yearly$19.991 Year
Kuu3D
- Unlock All Features$4.99
Questions
Is Model Viewer | CAD Viewer free?
Is Kuu3D free?
Do Model Viewer | CAD Viewer or Kuu3D have ads?
Which is updated more often, Model Viewer | CAD Viewer or Kuu3D?
Other comparisons















