GCodeReader CNC vs CAD Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GCodeReader CNC
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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.
CAD Studio
Create, edit, and view technical drawings on your mobile device. This professional 2D CAD tool offers a full drawing engine, multi-layer management, and precise snapping for engineers, architects, designers, and students.
- Full 2D drawing engine
- Multi-layer management
- Import DWG, DXF, and image files
- Precise snapping tools
- Built-in templates
- Export and share projects
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Professional 2D CAD drawing studio in your pocket. CAD Studio is a powerful mobile CAD tool for engineers, architects, designers and students. Create, edit and view technical drawings anytime, anywhere. KEY FEATURES: • Full 2D drawing engine — lines, arcs, circles, polylines, polygons • Multi-layer management with visibility and lock controls • Import DWG, DXF, and image files seamlessly • Precise snapping — endpoint, midpoint, intersection, grid • Built-in templates and sample projects • Export and share your projects instantly • Optimized for iPhone and iPad with Apple Pencil support PERFECT FOR: - Architecture floor plans and layouts - Mechanical engineering schematics - Electrical wiring diagrams - Landscape and interior design - Student coursework and technical education Download CAD Studio and turn your device into a professional drafting workstation.
Screenshots
Verdict
The clearest difference is price: GCodeReader CNC at Free against CAD Studio's $9.99. CAD Studio's advantage is update cadence (every 10 days vs every 4 months) and iOS requirement (16.0 vs 26.0). On 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
GCodeReader CNC is free to download; CAD Studio costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GCodeReader CNC ships an update every 4 months, CAD Studio every 10 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.
| Parameter | GCodeReader CNC | CAD Studio |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | — | 3.7 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Favionics | 玉英 张 |
In-app purchases
GCodeReader CNC
No in-app purchases
CAD Studio
No in-app purchases









