For Apple Vision Pro, iPhone & iPad · Engineering review

Take your CAD and mesh data out of the monitor.

3D Spatial Viewer turns Apple Vision Pro into a precision review tool — and now, as a universal app, brings the same STL/OBJ/PLY/GLB/USDZ workflow to iPhone and iPad. Inspect parts and assemblies at true 1:1 scale, walk around them, and analyze them with a professional workflow — no mouse, no orbit camera, just your hands and eyes.

Free on the App Store · Universal app for visionOS 2.0, iOS 17 & iPadOS 17 or later · Works offline

rot x -16.0°
rot y 000.0°
scale 1:1
true 1:1 scale
1,240,880 tris
Best Fit · ICP
What's new

3D Spatial Viewer is now a universal app.

The same app now runs on iPhone and iPad, in addition to Apple Vision Pro. Load and explore your 3D models anywhere — and thanks to SharePlay, you can view them together across different devices, with an iPhone user and a Vision Pro user in the same session.

Universal · Vision Pro, iPhone & iPad Cross-device SharePlay
SharePlay, smoother and more reliable
  • Automatic model sharing — when you start a SharePlay session, all models already open are automatically sent to the other participant, including OBJ files.
  • Reliable receiving on iPhone — models sent from Vision Pro appear right away, even if you haven't loaded anything on iPhone yet.
  • Transfer indicator — a clear "Sharing model…" / "Receiving model…" indicator stays visible while a model is being sent or received.
  • Cleaner view — on iPhone, the info button hides while a model is loaded.
What you can do

A precision review tool for engineers, designers, manufacturing teams, hobbyists, and enthusiasts.

Every tool assumes the part is a real object in front of you — because on Vision Pro, it is. The same toolset now travels with you on iPhone and iPad for review on the go.

Open your pipeline's formats

Import STL, OBJ, PLY, GLB, and USDZ files from Files or iCloud — including CAD and scan exports. Load multiple parts at once at a consistent scale.

Inspect naturally

  • Rotate and reposition models with intuitive gestures
  • Set per-model transparency to see through assemblies
  • Assign colors to untextured meshes for clarity
  • Play animations embedded in USDZ models

Measure at real-world scale

Place points directly on the geometry to measure distances in the model's true dimensions — quick sanity checks on clearances, envelopes, and fit.

Cross-section

Slice any model along the X, Y, or Z axis to reveal internal geometry, wall thickness, and hidden features.

Capture & mark up

Take spatial screenshots, review them in a built-in gallery, and annotate with pen, marker, and highlighter to flag issues and communicate intent.

Save and recall views

Bookmark camera positions and model states, then jump back to a critical angle or configuration instantly during a review.

Design reviews with SharePlay

Start a shared FaceTime session and inspect the same models with your team, suppliers, or clients — everyone sees the geometry in their own space, whether they're on Vision Pro, iPhone, or iPad.

Export

Export models to the USDZ format to share and reuse your work across the Apple ecosystem.

Overlay & deviation analysis

Best Fit alignment with a color deviation map.

Superimpose two models and align them automatically with an ICP "Best Fit" algorithm, or refine the fit by hand. Generate a color map that visualizes surface-to-surface distance in millimeters.

As-designed vs. as-manufactured Revision-to-revision Scan-to-CAD validation QA
Surface deviation · mm
−0.50−0.250.00+0.25+0.50
blue = under · red = over
Three steps

From an exported file to a full-size review.

Bring a part in, study it at true scale, then review it with your team.

STEP 01

Import

Open one or more parts from Files or iCloud — CAD and scan exports load together at a consistent scale.

STEP 02

Inspect & measure

Walk around it at 1:1, section it, measure clearances, and run a Best Fit deviation check.

STEP 03

Review & share

Mark up spatial screenshots, save key views, and inspect together over SharePlay.

Opens natively .stl .obj .ply .glb .usdz
Fast · precise · built for review

Bring your parts to life.

Fast, precise, and built for real engineering review — and free on the App Store. Put your next part in the room on Apple Vision Pro, or review it anywhere as a universal app on iPhone and iPad.

Download on the App Store