Best Cnc Model Viewer Apps

203+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated May 2026

With an average user rating of 4.3★, the cnc model viewer category is one of the App Store's strongest. Browse all 203+ apps we track, sorted so the most loved ones surface first.

Compare top Cnc Model Viewer Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calistra ViewerCalistra ViewerFree was $2.995.0★ (4)NoYesAug 2026
23D Model Viewer - AR & Print3D Model Viewer - AR & PrintFree4.4★ (340)NoYesSep 2026
3Sequence :: G-Code editor, CNCSequence :: G-Code editor, CNCFree4.3★ (64)NoYesSep 2026
43D Viewer by Chief Architect3D Viewer by Chief ArchitectFree3.7★ (490)NoNoSep 2026
53D CAD Model Viewer3D CAD Model ViewerFree3.3★ (13)NoNoMay 2026
6uMake: 3D CAD Modeling, DesignuMake: 3D CAD Modeling, DesignFree4.2★ (4K)YesYesSep 2026
7SketchUp - 3D ModelingSketchUp - 3D ModelingFree4.5★ (18K)NoYesSep 2026
8STL File Viewer ProSTL File Viewer ProFree4.5★ (65)YesYesSep 2026

Top Picks for Cnc Model Viewer

5.0(4 ratings)
FreeIn-App Purchases
Calistra Viewer screenshot 1
Calistra Viewer screenshot 2
Calistra Viewer screenshot 3
Calistra Viewer screenshot 4

This application allows engineers, machinists, and designers to view and inspect complex 3D CAD models on iOS devices. It supports a wide range of file formats and offers tools for measurement, material assignment, and weight calculation, all while operating fully offline.

4.4😞(340 ratings)
FreeIn-App Purchases
3D Model Viewer - AR & Print screenshot 1
3D Model Viewer - AR & Print screenshot 2
3D Model Viewer - AR & Print screenshot 3

Explore and interact with 3D models on your mobile device. Simulate the 3D printing process to identify potential issues before committing to a print. Visualize your models in augmented reality, adjusting scale and rotation within your real-world environment.

What We Love

  • 👍 Easy to use
  • 👍 Nice app design
  • 👍 Simple and well-designed
  • 👍 Quick viewing of models
  • 👍 Low app size

Room to Improve

  • 👎 Only one free model import
  • 👎 Paywall for more models
  • 👎 Models shown at incorrect scale
  • 👎 App crashes frequently
  • 👎 Limited free version
  • 👎 No option to watch ads for uploads
  • 👎 Useless free version
  • 👎 Unusable after purchase
  • 👎 Can't view files without paying
  • 👎 Limited functionality
  • 👎 Primitive emulation
  • 👎 Not worth paying for
  • 👎 Paid for but still limited
  • 👎 Doesn't work on newer iOS
  • 👎 No FBX import option
  • 👎 Y axis is up in AR
  • 👎 Incorrect AR sizing
  • 👎 Crashes with larger files
  • 👎 VR crashes
  • 👎 Cannot freely rotate models
  • 👎 Cannot place models in environment
  • 👎 Paint function assigns random color
  • 👎 Centering model limits viewing
  • 👎 App crashes on iPad Pro

More Cnc Model Viewer apps to explore

FAQ about Cnc Model Viewer

What are the best cnc model viewer apps for iPhone?
Calistra Viewer tops our cnc model viewer apps ranking as of May 2026, with a 5.0-star average from 4 App Store ratings, and it's free to download.
Yes — 19 of the top cnc model viewer apps we rank are free to download, including Calistra Viewer and 3D Model Viewer - AR & Print.
Calistra Viewer has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 203+ cnc model viewer apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
CNC Model Viewer supports a comprehensive range of CAD file formats including STEP, IGES, STL, OBJ, glTF, GLB, PLY, VRML, and BREP. This allows for broad compatibility with various design and engineering software.
Yes, CNC Model Viewer offers robust measurement tools. You can select faces and edges to measure diameters, distances, angles, and lengths. Apple Pencil support on iPad enhances precision with hover previews.