CAD Viewer Editor vs STEP Reviewer Pro

CAD Viewer Editor is a fast, privacy-first DWG & DXF viewer and 2D editor for iPhone, iPad, and Mac. Open AutoCAD-compatible drawings from email, AirDrop, the Files app, iCloud, Dropbox, or Google Drive — and work on them entirely offline. No account, no ads, no uploads. CAD Viewer Editor renders large drawings smoothly on Apple silicon, with crisp lines, accurate colors, faithful layer rendering, and proper SHX / TTF / Big Font text. KEY FEATURES Open DWG & DXF drawings • DWG R14 through R2018 — every mainstream release • DXF ASCII read & write — round-trip to AutoCAD, BricsCAD, ZWCAD, GstarCAD, DraftSight • Multi-document tabs — switch between drawings instantly • Drag & drop files onto the canvas (iPad / Mac) • Open from Files, Mail, Safari, AirDrop, Share Sheet Smooth viewing • Pinch to zoom, two-finger pan, double-tap to fit • Configurable grid, axes, and background • Layer panel: show, hide, isolate, lock • Block (INSERT) browser — drill into nested blocks • Object properties: color, layer, linetype, line weight, geometry 2D drafting & editing tools • Draw lines, polylines, circles, arcs, rectangles, ellipses, splines, text • Move, copy, rotate, scale, mirror, offset, trim, extend • Grip-edit selected objects with direct manipulation • Snap to grid; smart selection (window, crossing, all) • Multi-level undo & redo Export & share • Export to PDF — single-page or multi-page, custom size • Export to PNG raster at any resolution • Export back to DXF for round-tripping to desktop CAD • Export tables to CSV • System Share Sheet — Mail, Messages, AirDrop Designed for privacy • Fully offline — no internet required to open or edit • Zero account, zero sign-up, zero ads • Your drawings never leave the device unless YOU share them • No telemetry by default; opt-in crash reports only iPad & Apple Pencil ready • Layouts optimized for iPhone, iPad, and macOS • Apple Pencil support for precise selection and markup • Stage Manager and multitasking on iPad • Trackpad, mouse, keyboard shortcut support on Mac 57 languages English, 简体中文, 繁體中文, 日本語, 한국어, Español, Français, Deutsch, Português, Italiano, Русский, العربية, Türkçe, Tiếng Việt, ไทย, हिन्दी, and more. WHO IT'S FOR • Architects and structural engineers on site • Mechanical, electrical, plumbing engineers reviewing shop drawings • Civil, road, bridge and survey engineers • Interior designers reviewing floor plans • Project managers, contractors, foremen • Real-estate agents reviewing blueprints • CAD students learning AutoCAD-compatible workflows COMPATIBILITY CAD Viewer Editor reads and writes DWG / DXF files produced by AutoCAD, BricsCAD, ZWCAD, GstarCAD, DraftSight, LibreCAD, QCAD, and other CAD applications. Not affiliated with or endorsed by Autodesk, Inc. FEEDBACK We read every email. Tap "Send Feedback" in the app, or write to support@iothub.cloud — feature requests welcome. Give it a try — no account, no commitment. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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: - Dual: Use your iPhone to control the model on your Mac over Wi-Fi or Bluetooth. Press and hold Pan, Rotate, or Scale, then move or turn your iPhone. Release the button to stop. - 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 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.