3D Kit: STL Viewer
CAD Model & Print Preview AR
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Open, explore, and inspect 3D models on your iPhone or iPad. 3D Kit is a fast, intuitive viewer built for makers, designers, engineers, and anyone who works with 3D files.
Drop in an STL, OBJ, USDZ, or 3MF file and see it rendered instantly. Orbit around your model with smooth turntable controls, zoom in to inspect fine details, and get a complete breakdown — triangle count, vertex count, dimensions, bounding box, file size, volume, and surface area.
BUILT FOR 3D PRINTING
Choose from popular printer bed presets or enter custom dimensions to see exactly how your model fits on the build plate. A floor grid gives you spatial reference, and real-time measurement overlays show width, height, and depth in millimeters — so you can verify scale before you slice.
Whether you are checking a downloaded file or reviewing your own design exports, 3D Kit gives you a quick, reliable way to preview models without launching a full slicer or CAD application.
SEE YOUR MODEL IN THE REAL WORLD
Place any 3D model into your physical environment using augmented reality. Point your camera at a flat surface, tap to place, and walk around your model as if it were sitting right in front of you. AR mode is perfect for checking the real-world size of a print, showing a design to someone who does not use CAD software, or seeing how a model looks on your desk before committing to a print.
Measurements work in AR too, so you can verify dimensions while viewing the model in context.
MAKE IT YOURS
Customize every aspect of the viewing experience. Change the object color, floor color, sky color, grid color, grid line width, and ruler line color. Choose from camera presets — front, back, left, right, top, bottom, and isometric — or orbit freely to find the perfect angle.
All appearance settings persist across sessions.
CAPTURE AND SHARE
Take high-resolution screenshots or record smooth video walkthroughs. Export to your photo library, save to Files, or share directly to any app. Video recording works in both the standard viewport and AR mode.
YOUR MODEL LIBRARY
Import files from the Files app, AirDrop, email attachments, or any app that shares 3D files. 3D Kit organizes your models in a built-in library with quick access to recent files. Rename, delete, and manage your collection without leaving the app.
Browse the included sample models to explore what 3D Kit can do, no files required.
SUPPORTED FORMATS
- STL (binary and ASCII)
- OBJ
- USDZ
- 3MF
KEY FEATURES
- Instant 3D model rendering with smooth orbit controls
- Detailed model info: triangles, vertices, dimensions, volume, surface area, file size
- Printer bed presets or custom dimensions
- Real-time measurement overlays in millimeters
- Augmented reality placement on any flat surface
- Customizable colors for object, floor, sky, grid, and ruler lines
- Camera orientation presets for standard views
- Screenshot and video capture in viewport and AR modes
- Built-in model library with import, rename, and delete
- Sample models included to get started immediately
- Designed for iPhone and iPad
3D Kit is the fastest way to go from file to visual on iOS. No account required, no cloud uploads, no waiting. Just open a file and see your model.
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved 3D file importing:
• If a file didn't fully download from your cloud storage, you'll now see a clear message asking you to re-download it instead of a generic import error
• Stability improvements
The developer, Adapted Hub LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Adapted Hub LLC
- Size
- 29.4 MB
- Category
- Graphics & Design
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Access Monthly $4.99
- Lifetime Pro Access $29.99
- Copyright
- © Adapted Hub LLC (2026)