STEP Reviewer
Built for CAD review: STEP files in the hundreds of MB and faceted models above 1 million triangles, plus measurement, cross sections, PMI, and mesh export. Opens STEP and IGES on Mac, iPhone, iPad, and Apple Vision — on device, with no uploads.
DOMAIN INSIGHT
Large STEP assemblies on device
Engineering STEP files are often hundreds of megabytes, with tessellations that exceed a million triangles. STEP Reviewer is built for that class of review: OCCT import on device, assembly structure, measurement and PMI on iOS and macOS, sections, capture, and tessellated export. It is not a lightweight STEP previewer and not a CAD editor — source files stay local.
CORE FEATURES
DESIGNED FOR
QUESTIONS
How large a STEP file can STEP Reviewer handle?
It is built for engineering files in the hundreds of megabytes and faceted models above one million triangles, with OCCT import running on device.
Which devices and file types does STEP Reviewer support?
It opens STEP (.step, .stp) and IGES (.iges, .igs) files locally on macOS, iPhone, iPad, and Apple Vision.
Can I measure parts and read PMI?
Yes. You can measure points, edges, faces, distances, angles, radii, and diameters on iOS and macOS, and inspect names, colors, materials, and supported PMI/GD&T.
What can I export from STEP Reviewer?
Tessellated geometry can be exported as binary STL, GLB, USDA, USDC, or USDZ. You can also capture annotated screenshots and record review videos with optional narration.
