3D CAD & Mesh Viewer

View STL, OBJ, PLY and 3MF files fast. Orbit, isolate parts, inspect geometry and export screenshots. CAD Pro adds STEP/STP, measurements, sections, exports and AR.

3D CAD & Mesh Viewer is a fast, professional viewer for CAD and mesh models on iPhone, iPad and Mac.

Import a model and inspect it immediately in an interactive 3D workspace. Rotate, pan, zoom, select geometry and review model information through a clean interface designed for quick engineering checks, design reviews and workshop use.

Standard file support

View these formats without upgrading:

STL OBJ PLY 3MF Standard viewer features Smooth orbit, pan, zoom, fit and reset controls Shaded, wireframe, edge and X-ray display modes Model dimensions and bounding-box information File, mesh, vertex and triangle statistics Object selection with hide, isolate and show-all controls Saved viewpoints Screenshot and source-file sharing Import from the Files app, iCloud Drive and supported cloud providers Offline model viewing CAD Pro

CAD Pro is an optional non-consumable upgrade that adds professional CAD inspection tools, including:

STEP and STP file import AP203, AP214 and AP242 support Assembly and component browsing Preservation of available component names and colours Component, body, face and edge selection Hide, isolate and inspect individual components Distance, angle, radius and diameter measurements Section and clipping planes Exploded assembly views Approximate surface area and closed-body volume Estimated mass using selectable material densities GLB and USDZ export USDZ preview and sharing AR placement on supported iPhone and iPad devices Model Assistant on supported Apple Intelligence devices

Built for engineers, designers, fabricators, makers and anyone who needs to inspect 3D models quickly without a full desktop CAD package.