Comparison

3D Spatial Viewer vs Viewport 3D

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

Head to head
About

3D Spatial Viewer

Features
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3D Spatial Viewer for iPhone and iPad: the lightweight 3D viewer companion to the Apple Vision Pro version. Import STL, PLY, OBJ, USDZ, GLB and glTF files and rotate, move, and pinch to zoom. Adjust opacity and mesh styles - Original, Color, Wireframe - and follow PDF presentations in a draggable Picture-in-Picture window. COLLABORATE WITH VISION PRO VIA SHAREPLAY • Join a Vision Pro session over FaceTime: models and transforms sync in real time • Receive shared models directly on your iPhone • Follow PDF slides synced page by page • Load your own files locally to review on your own Ideal for joining CAD reviews, anatomy lessons, architecture and design presentations without a headset. Privacy: files stay on device. Sharing happens only during a SharePlay session.

About

Viewport 3D

This app allows artists to quickly open and inspect 3D models from various cloud storage services and local files. It offers professional viewing tools, animation playback, and augmented reality capabilities, all processed on-device for privacy.

Highlights
  • Open 3D models from cloud storage
  • Supports over 20+ 3D file formats
  • Professional inspection tools
  • Animation playback
  • Augmented Reality (AR) mode
  • On-device processing for privacy
Read full description

Viewport is a fast, focused 3D viewer built for artists. Open models straight from the Files app on iPhone or iPad — iCloud Drive, Google Drive, Dropbox, OneDrive, Downloads or AirDrop — and inspect them in a clean, professional viewport. No account. No cloud. No clutter. OPEN ALMOST ANYTHING • USD family + Reality load natively: USDZ, USD, USDA, USDC, .reality • OBJ, STL and PLY • FBX, glTF, GLB, DAE and 20+ more formats via an in-app importer • Pick a model and its texture files together to keep materials INSPECT LIKE A PRO • Smooth orbit, pan, pinch-zoom and double-tap to frame • Studio lighting presets + intensity, multiple backgrounds (studio, blueprint, gradient, checker…) • Render channels: shaded, albedo, normals, roughness and UVs • Turntable auto-spin and a reference ground grid • Scene info: bounding box, dimensions, vertex/triangle/material/texture counts — real values, never faked ANIMATION • Plays node/transform animation and skeletal (bone) skinning on supported models • Simple play / pause / loop transport AR • Place supported static models on real surfaces • Real World and Studio lighting modes • Stable placement, flexible scaling and grounding shadows MORE • Capture a screenshot and share it • Recent files with search, sorting, date grouping and thumbnails • Adaptive layouts and multitasking support on iPad PRIVACY FIRST All 3D processing happens on your device. Viewport has no accounts, no tracking, no ads, and never uploads your files. Made by Reimagine Fx. More formats and tools coming.

Screenshots

3D Spatial Viewer2 screens
Viewport 3D4 screens

Verdict

The call

The clearest difference is iOS requirement: Viewport 3D at 17.0 against 3D Spatial Viewer's 27.0. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

3D Spatial Viewer ships an update every 3 weeks, Viewport 3D every 2 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 8 level
3D Spatial Viewer versus Viewport 3D: the parameters behind the verdict, then further details
Parameter3D Spatial ViewerViewport 3D
PriceFreeFree
Rating—4.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, Vision Pro — betteriPhone, iPad
Requires iOS27.017.0 — better
Further details — not scored
Size13 MB47 MB
Age rating4+4+
DeveloperGIOVANNI BATTISTAAmar Shinde

In-app purchases

None

3D Spatial Viewer

No in-app purchases

None

Viewport 3D

No in-app purchases

Questions

Is 3D Spatial Viewer free?
3D Spatial Viewer is free to download, with no in-app purchases.
Is Viewport 3D free?
Viewport 3D is free to download, with no in-app purchases.
Do 3D Spatial Viewer or Viewport 3D have ads?
Neither 3D Spatial Viewer nor Viewport 3D shows ads.
Which is updated more often, 3D Spatial Viewer or Viewport 3D?
3D Spatial Viewer ships an update every 3 weeks, and Viewport 3D every 2 weeks. Most recently, 3D Spatial Viewer was updated on October 28, 2026 and Viewport 3D on October 25, 2026.

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