Comparison

FaceDepthTool vs Scan4D

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FaceDepthTool

Features
Read full description

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!

About

Scan4D

Features
Read full description

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

FaceDepthTool3 screens
Scan4D3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
FaceDepthTool versus Scan4D: the parameters behind the verdict, then further details
ParameterFaceDepthToolScan4D
PriceFreeFree
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS13 — better18.0
Further details — not scored
Size6 MB3 MB
Age rating4+4+
Developer宇 晏Anthony Rowe

In-app purchases

None

FaceDepthTool

No in-app purchases

None

Scan4D

No in-app purchases

Questions

Is FaceDepthTool free?
FaceDepthTool is free to download, with no in-app purchases.
Is Scan4D free?
Scan4D is free to download, with no in-app purchases.
Do FaceDepthTool or Scan4D have ads?
Neither FaceDepthTool nor Scan4D shows ads.

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