Comparison

InkWave 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

InkWave

Features
Read full description

InkWave is a clean, lightweight drawing app designed for quick sketches, notes, and simple illustrations. It keeps the essentials front and center so you can focus on drawing—no clutter, no learning curve. Why you’ll love InkWave • Natural drawing feel • On iPad, InkWave uses Apple Pencil for low-latency, pressure‑sensitive strokes that feel great. • On iPhone, draw comfortably with touch on a responsive canvas. • Flexible canvas • Start with your screen size or choose presets like A4, Letter, or Square. • Pinch to zoom and pan; double‑tap to reset zoom and re-center. • Project library • Save drawings as projects with automatic thumbnail previews. • Rename, duplicate, and delete projects right inside the app. • Export your art • Save to Photos as JPG (with background color or image) or transparent PNG. • Pick a background color before exporting for perfect results. • Simple and focused • Minimal interface, smooth performance, and the essentials you need to sketch fast. InkWave supports iPhone and iPad. For the best experience, use Apple Pencil on iPad. In‑App Purchase • Remove Ads: One‑time purchase to remove ads and enjoy an uninterrupted drawing experience. Tips: • Use Projects to organize drawings and revisit them later. • “Save Drawing” updates your current project; “Save New Drawing” creates a new project automatically. • Choose “Save as Transparent PNG” for overlays and clean exports. Thanks for your support! Visit nitrio.com for more apps for your iOS devices.

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

InkWave4 screens
Viewport 3D4 screens

Verdict

The call

The clearest difference is in-app purchases: Viewport 3D at none against InkWave's 1. Viewport 3D also leads on iOS requirement (17.0 vs 26.0). On price, ads 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. InkWave sells 1 one-off in-app purchase. Viewport 3D asks for nothing beyond the download.

Scorecard2 real differences · 7 level
InkWave versus Viewport 3D: the parameters behind the verdict, then further details
ParameterInkWaveViewport 3D
PriceFreeFree
Rating—4.0 (2 ratings) — better
Number of ratings—2 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size6 MB47 MB
Age rating4+4+
DeveloperHeng Jia LiangAmar Shinde

In-app purchases

1 purchases

InkWave

One-time1
  • Remove Ads$2.99
None

Viewport 3D

No in-app purchases

Questions

Is InkWave free?
InkWave is free to download, with in-app purchases available.
Is Viewport 3D free?
Viewport 3D is free to download, with no in-app purchases.
Do InkWave or Viewport 3D have ads?
Neither InkWave nor Viewport 3D shows ads.

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