Scan4D vs SpaceSnug

Scan4D is a professional-grade reality capture app for iPhone and iPad. It turns your device's LiDAR sensor and camera into a powerful 3D scanner, capturing detailed meshes, depth maps, and camera poses for downstream reconstruction, photogrammetry, and spatial computing. FULL MODE (LiDAR devices) • Real-time mesh reconstruction with live wireframe overlay • 16-bit depth maps captured at adaptive frame rates • Scan capacity metrics: polygon count, drift tracking, session duration • Interactive 3D mesh preview with camera-sampled vertex coloring • Privacy filtering: person segmentation removes humans from meshes, face blurring in RGB exports LITE MODE (all devices) • RGB frame capture with ARKit camera poses • Server-side photogrammetry via exported image bundles • Automatic detection — no configuration needed TIME-SERIES SCANNING • Group scans by Location and re-scan the same space over time • "Extend Scan" loads a red ghost-mesh overlay of previous captures • Adjacent stitching: scan neighboring areas with shared coordinate frames • ARWorldMap relocalization for precise alignment between sessions FLEXIBLE EXPORT FORMATS • Scan4D: Full bundle with metadata, relocalization map, images, depth, and camera data • Polycam: Raw data import compatible with Polycam • RAW: Nerfstudio/COLMAP-compatible transforms.json + images + depth • OBJ / PLY / USDZ: Native mesh formats for MeshLab, Blender, and iOS Quick Look SERVER INTEGRATION • Configure any HTTP(S) upload endpoint in Settings • Direct PUT upload with live progress tracking • Save to Files or AirDrop for offline workflows • Compatible with self-hosted reconstruction pipelines DEVELOPER MODE • Front/back camera switching for testing privacy features • Synthetic IMU, camera, and depth injection for Simulator testing • Vertex mapping diagnostics and debug overlays Designed for researchers, 3D scanning professionals, and spatial computing developers who need raw, high-fidelity sensor data with full control over the reconstruction pipeline. Requires ARKit-capable device. LiDAR-equipped iPhone or iPad Pro recommended for full functionality.

Standing in a store eyeing a couch, wondering if it'll ever make it through your front door? Moving day, and the wardrobe is stuck halfway up the stairs? SpaceSnug answers the one question that matters: will it fit? Check it before you buy it, before you carry it, before you get stuck. TWO WAYS TO MEASURE - Scan it in 3D. Point your iPhone or iPad Pro at the object, then at the doorway, hallway or stairwell — LiDAR does the measuring for you. Fast and accurate. - Or type it in. Enter the width, height and depth by hand on any device. Free, no scan needed. A CLEAR ANSWER - Fits, Tight, or Doesn't fit. No guessing. - SpaceSnug names the limiting dimension, so you know exactly what's in the way. - Handling tips show you how to carry it: turn it on its side, tilt it back, or rotate it through. IT KNOWS THE WHOLE ROUTE - Narrow hallways, tight corners, stairwells and landings — SpaceSnug accounts for the turns along the way, not just a single opening. So you find out before the heavy lifting, not during it. ROOM MODE - Scan a room and drop items inside to see whether, and where, they actually fit. Plan the layout before you move a thing. EVERYTHING SAVED - Every check and scan lands in your library — come back to it in the store, at home, or on moving day. PRIVATE BY DESIGN - Your scans stay on your device. FREE TO START - Entering dimensions by hand and running fit checks is free. In-app "Fits" power the LiDAR scans when you want the phone to do the measuring. Moving house, buying a sofa, fridge or wardrobe, or rearranging a room — measure once, carry once. Know it fits before you lift it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Service Terms: https://spacesnug.com/terms