3D Spatial Viewer vs STEP Reviewer Pro

3D Spatial Viewer for iPhone and iPad: the lightweight 3D viewer companion to the Apple Vision Pro version. Import STL, PLY, OBJ, USDZ, GLB and glTF files and rotate, move, and pinch to zoom. Adjust opacity and mesh styles - Original, Color, Wireframe - and follow PDF presentations in a draggable Picture-in-Picture window. COLLABORATE WITH VISION PRO VIA SHAREPLAY • Join a Vision Pro session over FaceTime: models and transforms sync in real time • Receive shared models directly on your iPhone • Follow PDF slides synced page by page • Load your own files locally to review on your own Ideal for joining CAD reviews, anatomy lessons, architecture and design presentations without a headset. Privacy: files stay on device. Sharing happens only during a SharePlay session.

STEP Reviewer Pro focuses on viewing large STEP files and reviewing 3D CAD models on Apple devices. Built for files hundreds of MB in size and complex assemblies, it optimizes local loading and browsing on iPhone, iPad, Mac and Apple Vision Pro, without uploads or cloud conversion. Staged loading and progress indicators show what is happening. View geometry as it becomes ready and cancel loading at any time. Model size and loading speed depend on device memory and model complexity. Key features: - Open STEP (.step, .stp) and IGES (.iges, .igs) files locally, free of charge - Browse assemblies, focus parts, and show or hide nodes and all their children - Rotate, pan, zoom, reset, and focus models or components - Match source orientation with X-Up, Y-Up, or Z-Up - Inspect dimensions, mesh statistics, names, colors, materials, and supported PMI/GD&T data - Measure points, edges, faces, distances, angles, radii, and diameters on iOS and macOS - Create filled XY, XZ, or YZ cross sections and inspect internal geometry - Separate assembly components with Exploded View - Add auto-saved model notes, track their status, export PDF reports with model screenshots, and import or export note backups - Capture screenshots with arrows, rectangles, text annotations, and optional watermarks - Record review videos with a set duration, microphone narration and text watermarks - Export mesh models as binary STL, binary glTF GLB, USDA, USDC or USDZ - Export individual parts from the model tree (requires an unlock) - Review 3D CAD models in an immersive spatial experience on visionOS - No ads, account registration, behavioral analytics, or model upload for viewing Who is it for? - Engineers viewing STEP, STP and IGES exchange files - Manufacturing and quality teams inspecting assemblies and shared model geometry - Suppliers, purchasing teams and customers who need a quick look at 3D models - Teams sharing measurements, cross sections, screenshots or recordings - Creators using AI to create or work with 3D models who need to view large STEP and IGES files on Apple devices Common questions: - Does STEP Reviewer Pro support IGES files? Yes. IGES/IGS import is free. Models appear as meshes, without STEP assembly structure or PMI/GD&T metadata. - Can I measure STEP models? On iOS and macOS, free users can keep two results. Unlimited Measurements removes that limit. Measurement and spatial PMI are unavailable on visionOS. - Can STEP models be exported to STL, GLB, or USDZ? Yes. STL, GLB, USDA, USDC, and USDZ contain tessellated geometry, not exact B-rep surfaces, feature history, constraints, or PMI. - Are CAD files uploaded to a server? No. All processing stays on your device. You choose where to save or share. - Is STEP Reviewer Pro a CAD editor? No. It is a read-only STEP/IGES viewer, not a CAD authoring or repair system. Source files are unchanged. Pricing & Access - Free: Open STEP files, browse assemblies, inspect model information, and keep two measurements on iOS and macOS. - Subscription: Unlock all current Pro tools while active across supported platforms with the same Apple Account. - Individual Unlocks: Make one-time purchases for inspection, capture, or export tools. - Payment is charged to your App Store account. - Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the current period ends. - Manage or cancel subscriptions in your App Store account settings. Privacy & Terms - Purchases, subscriptions, refunds, and restores are handled by Apple through your App Store account. - Privacy Policy: https://apps.h53d.xyz/apps/step-reviewer/policy.html - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Need help or have feedback? Email iuway@foowei.com.