Comparison

GCode Scanner for CNC Machines vs OTEC

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

Head to head
About

GCode Scanner for CNC Machines

This tool allows users to view and simulate CNC machine code (G-code) and 3D model files (STL) before production. It helps prevent errors, save tools, and reduce setup times for machinists, programmers, and engineers.

Highlights
  • G-code viewer with real-time toolpath playback
  • Error detection for gouges and over-travels
  • STL model viewer
  • Universal G-code compatibility
  • Shop-floor ready interface
  • Import from cloud storage or local device
Features
Read full description

G-Code scanner lets you view STL files before 3d printing. It is a photo scanner for CNC machine code and STL viewer. This eas 3D printing stl viewer tool, G code viewer for CNC, CNC G-Code & STL Viewer gives machinists, programmers, and engineers a powerful pocket-sized tool for inspecting, simulating, and sharing toolpaths—anywhere the job takes you. WHY CHOOSE CNC G-CODE & STL VIEWER • Instant insight: Load FANUC- or HAAS-style G-code in seconds and watch real-time toolpath playback before a single chip is cut. • Error prevention: Catch gouges, over-travels, and syntax issues early so you protect cutters, fixtures, and machines. • STL Viewer: Upload and view STL models quickly and easily, right from your phone • Universal compatibility: Works with Gcode from most major machine tool companies • Shop-floor ready: Dark theme, large coordinates, and touch-friendly controls keep the data readable in bright coolant-splashed environments. • Cloud or local: Import files from email, Google Drive, Dropbox, or straight from your device’s storage—no forced sign-ups. WHO IT’S FOR • Job-shop machinists verifying edits right at the machine • Manufacturing engineers adjusting code on the production floor • CAD/CAM programmers teaching technicians how to debug code • Instructors demonstrating CNC concepts in the classroom • Hobbyists running desktop routers or 3D printers that accept G-code SAVE TIME, SAVE TOOLS, SAVE MONEY Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OTEC

Read full description

Designed for professional metal polishing, OTEC gives you a smarter, faster and more precise way to manage your workflows. Key Features • Seamless Bluetooth connection to your EF-One or EF-Nova • Adjust processing parameters directly from the app • Save custom settings for consistent, repeatable results • Create and manage Recipes for specific workpieces, including time, speed & voltage • Improve efficiency with quick access to your preferred polishing processes With OTEC, you can bring precision, repeatability and maximum convenience to your surface-finishing operations—right from your smartphone.

Screenshots

GCode Scanner for CNC Machines4 screens
OTEC4 screens

Verdict

The call

The clearest difference is in-app purchases: OTEC at none against GCode Scanner for CNC Machines's 3. OTEC also leads on iOS requirement (14.0.0 vs 16.4). On price, update cadence, 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. GCode Scanner for CNC Machines sells 3 in-app purchases, starting at $4.99 per 7 days. OTEC asks for nothing beyond the download.

UpkeepUpdate frequency

GCode Scanner for CNC Machines ships an update every 3 weeks, OTEC monthly. The most recent releases landed on September 27, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
GCode Scanner for CNC Machines versus OTEC: the parameters behind the verdict, then further details
ParameterGCode Scanner for CNC MachinesOTEC
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.414.0.0 — better
Further details — not scored
Size77 MB24 MB
Age rating4+4+
DeveloperJeremiah MooreOTEC Präzisionsfinish GmbH

In-app purchases

3 purchases

GCode Scanner for CNC Machines

Subscriptions3
  • Pro Weekly Membership$4.997 Days
  • Pro Monthly Membership$7.991 Month
  • Pro Annual Membership$69.991 Year
None

OTEC

No in-app purchases

Questions

Is GCode Scanner for CNC Machines free?
GCode Scanner for CNC Machines is free to download, with in-app purchases available.
Is OTEC free?
OTEC is free to download, with no in-app purchases.
Do GCode Scanner for CNC Machines or OTEC have ads?
Neither GCode Scanner for CNC Machines nor OTEC shows ads.
Which is updated more often, GCode Scanner for CNC Machines or OTEC?
GCode Scanner for CNC Machines ships an update every 3 weeks, and OTEC monthly. Most recently, GCode Scanner for CNC Machines was updated on September 27, 2026 and OTEC on October 1, 2026.

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