Comparison

GCodeReader CNC vs Digit 3D CAD

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

Head to head
About

GCodeReader CNC

Features
Read full description

Inspect CNC toolpaths and CAD models locally on your iPhone or iPad. Open files from Files, explore geometry in 3D and review machining programs without an account or cloud conversion. SLDPRT PART VIEWING • View SLDPRT parts in 3D, including saved solid bodies, surfaces and sketch curves. • Show or hide individual bodies and surfaces. • Rotate, pan and zoom, or switch between standard views. • CAD files are opened for viewing; the original CAD file is not modified. G-CODE REVIEW • Explore 3D toolpaths with axes, a grid and view presets. • Play back a program and adjust playback speed. • Review cutter names and diameters from CAM comments, tool numbers, feed rates, spindle speed and estimated run time. • Check X, Y and Z trajectory dimensions, including rapid moves. • Collapse the program information panel to make more room for the toolpath. • Edit feed and spindle values, then explicitly save the file or export a copy. CAD AND 3D MODELS • Open STEP, IGES, BREP and DXF exchange files. • Inspect mesh and scene formats including STL, OBJ, PLY, USD/USDZ, Alembic, DAE and SCN. • View model dimensions, geometry counts and available body information. • Additional previews are available for Parasolid, DWG and CDR, with partial format coverage. FILE COMPATIBILITY SLDPRT viewing uses geometry stored in the part file. Compatibility with native formats depends on the file version and available data. SLDASM assembly import is not supported. For unsupported files, export to STEP, IGES, STL or DXF in the authoring application. LOCAL WORKFLOW Selected files are processed on your device. No sign-in or upload to a conversion service is required. Privacy information and third-party licenses are available from the information button inside the app. Estimated CNC run time is an approximation. Review any edited program before using it on a machine.

About

Digit 3D CAD

Create detailed 3D models and technical drawings on your iPhone or iPad. This app offers parametric modeling, sketching tools with Apple Pencil support, and assembly capabilities. Import and export various file formats for seamless workflow.

Highlights
  • Parametric 3D modeling
  • Sketching with constraints
  • Assembly and 2D drawings
  • Apple Pencil support
  • Import/export multiple file formats
  • Parametric history editing
Features
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Digit 3D is parametric 3D CAD for iPhone and iPad: sketch, model, assemble and make drawings. Sketch • Lines, circles, arcs, splines, ellipses, polygons and slots, with dimensions and constraints • Mirror; linear, circular and along-curve patterns; trim, extend, chamfer and fillet • Apple Pencil support for precise drawing Model • Extrude, revolve, sweep, loft, shell, fillet, chamfer, hole, thread, pattern and mirror • Auto boolean: cuts when it overlaps, joins when it touches, new body when apart • Direct editing: move, rotate and copy faces, with adjacent fillets following along • Surfaces, 3D curves and 3D splines • Parametric history: edit any step at any time, and replay how the model was built Assembly and drawings • Assembly lives in the modeling workspace: new parts, move parts, auto-detected mates, clash check • 2D drawings with standard views, sections and dimensions; 3D annotations export with STEP Two interfaces • Full: every command, with customizable side rails • Simple: tap a face and drag the arrow, easy for beginners Files • Import STEP, IGES, STL, OBJ, 3MF, 3DM, Parasolid (X_T) and DXF drawings • Projects are saved as encrypted .d3d files Privacy Policy: https://digit3d.top/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GCodeReader CNC4 screens
Digit 3D CAD4 screens

Verdict

The call

The clearest difference is in-app purchases: GCodeReader CNC at none against Digit 3D CAD's 4. Digit 3D CAD's advantage is update cadence (every 2 days vs every 4 months) and iOS requirement (16.4 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. Digit 3D CAD sells 4 in-app purchases, starting at $1.99 per month. GCodeReader CNC asks for nothing beyond the download.

UpkeepUpdate frequency

GCodeReader CNC ships an update every 4 months, Digit 3D CAD every 2 days. The most recent releases landed on October 25, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
GCodeReader CNC versus Digit 3D CAD: the parameters behind the verdict, then further details
ParameterGCodeReader CNCDigit 3D CAD
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—94.4% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.4 — better
Further details — not scored
Size44 MB78 MB
Age rating4+4+
DeveloperFavionics运保 罗

In-app purchases

None

GCodeReader CNC

No in-app purchases

4 purchases

Digit 3D CAD

Subscriptions4
  • Digit 3D Pro (monthly)$1.991 Month
  • Digit 3D Max (monthly)$2.991 Month
  • Digit 3D Pro (yearly)$9.991 Year
Show 1 more
  • Digit 3D Max (yearly)$17.991 Year

Questions

Is GCodeReader CNC free?
GCodeReader CNC is free to download, with no in-app purchases.
Is Digit 3D CAD free?
Digit 3D CAD is free to download, with in-app purchases available.
Do GCodeReader CNC or Digit 3D CAD have ads?
Neither GCodeReader CNC nor Digit 3D CAD shows ads.
Which is updated more often, GCodeReader CNC or Digit 3D CAD?
GCodeReader CNC ships an update every 4 months, and Digit 3D CAD every 2 days. Most recently, GCodeReader CNC was updated on October 25, 2026 and Digit 3D CAD on November 6, 2026.

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