FaceDepthTool vs Scan4D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FaceDepthTool
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FaceDepthTool Capture high-quality 3D depth photos using your iPhone's TrueDepth camera technology. Perfect for 3D scanning, facial depth mapping, and professional depth imaging projects. KEY FEATURES: Dual Camera Capture • Capture RGB color photos and depth maps simultaneously • Real-time face detection and alignment guidance • High-resolution depth data for professional use Smart Face Guidance • Visual oval guide for optimal face positioning • Real-time feedback for perfect alignment • Automatic capture when properly aligned Photo Management • Built-in gallery to view all captured photos • Side-by-side RGB and depth visualization • Individual or batch photo deletion • Export photos as ZIP files Privacy First • All photos stored locally on your device • No data collection or third-party sharing • You control when and what to upload • Transparent privacy policy REQUIREMENTS: • iPhone with TrueDepth camera (iPhone X or newer) • iOS 13.0 or later USE CASES: • 3D facial scanning and modeling • Depth mapping research and development • Computer vision training data collection • Photography and creative projects • AR/VR content creation FaceDepthTool gives you professional-grade depth capture capabilities right in your pocket. Start capturing stunning depth photos today!
Scan4D
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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.
Screenshots
Verdict
The clearest difference is iOS requirement: FaceDepthTool at 13 against Scan4D's 18.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | FaceDepthTool | Scan4D |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 宇 晏 | Anthony Rowe |
In-app purchases
FaceDepthTool
No in-app purchases
Scan4D
No in-app purchases
Questions
Is FaceDepthTool free?
Is Scan4D free?
Do FaceDepthTool or Scan4D have ads?
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