STL Viewer vs View3D Pro

Open and inspect STL files with STL Viewer, a 3D model viewer for 3D printing, CAD review and mesh measurement. Check dimensions and geometry on your phone or tablet before sharing a model or preparing a print. OPEN BINARY AND ASCII STL FILES Import STL models from your file manager, email attachments or cloud drive. Keep copies in a local library for convenient access. Model inspection runs on your device without an account or uploading STL files to our servers. EXPLORE YOUR 3D MODEL Rotate, zoom, pan and fit the model to the screen. Switch between shaded, wireframe and point views, use standard viewing directions, and show bounding boxes and dimensions. MEASURE AND INSPECT Measure distances, angles and X/Y/Z dimensions. Examine cross sections, volume and surface area. Use wall-thickness views, normal visualization, component coloring and printability checks to investigate mesh issues. ORGANIZE AND SHARE Find models in your STL library and share model images or inspection results. Premium options are available through in-app purchases. STL Viewer helps you inspect geometry; print settings and material choice still need to be checked for your printer. Privacy Policy: https://docs.google.com/document/d/1fPpYIUs9nyiLBl27gIhtaJYv-lsw6kDTgKDAcx1PT-s/preview Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscription Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

View3D Pro — Open, Inspect, and Share 3D Models — Fully Offline, Private & Blazing Fast View3D Pro is a professional-grade 3D model viewer built for creators, engineers, students, and makers. Open STL, OBJ, GLB, and GLTF files instantly — no cloud, no account, no compromise. [100% Offline & Private] • Works entirely on your device — zero internet connection required. • Your models never leave your device. No servers, no telemetry, no tracking. • No account sign-up. Just open, view, and go. • All files are stored securely in the app's sandbox and are completely erased when you uninstall the app. [Fast & Smooth Rendering] • Optimized native engine opens files in seconds, even large models. • High-fidelity rendering with accurate lighting, materials, and textures. • Smooth 3D rotation, zoom, and pan — respond instantly to a single finger. • Your data stays local, so performance stays fast whether you're online or on a plane. [Professional Toolsets] • Precision one-tap 3D inspect: rotate, orbit, zoom, and pan with intuitive gestures. • Clear wireframe & solid view modes for engineering review and 3D printing checks. • Open models directly from Files, AirDrop, Mail, Safari, or any sharing app. • Keeps your recently opened models one tap away for quick reload. • A curated library of sample models to test every feature right away. [Universal 3D Format Support] • STL, OBJ, GLB, and GLTF — the standard file types for 3D printing, CAD, game, and AR workflows. • Smart format detection reads the actual file content, so mislabeled files still open correctly. • Dark mode and light mode that follow your system appearance. • Multi-language support for a global audience. [Why View3D Pro?] • Private by design: your files stay yours. Perfect for confidential or pre-release designs. • Always available: no network, no subscription, no waiting — your viewer is always on. • Professional quality: built with the same rendering technology trusted by engineers and designers. • Respects your device: lightweight, no account, no background data usage. Whether you're reviewing a CAD export, checking a print-ready STL, presenting a GLB concept, or sharing a model with a teammate, View3D Pro gives you a fast, secure, and professional 3D viewing experience — entirely offline. Download now and bring professional 3D viewing to your pocket. View3D Pro requires no permissions beyond opening files you choose. Your data never leaves your device.