Comparison

GM Pro AF vs GCode Scanner for CNC Machines

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

Head to head
About

GM Pro AF

This app instantly configures running parameters for machining cutters, calculating RPM, IPM, SFM, and Chimp-Loads for various materials. It provides confidence and swagger for shop floor operations and allows sharing of findings.

Highlights
  • Instant configuration of running parameters
  • Calculates RPM, IPM, SFM, and Chimp-Loads
  • Supports a wide variety of machining materials
  • Quick calculations without lengthy questionnaires
  • Share machining findings
Features
Read full description

The Gorilla Machinist Pro App immediately configures running parameters to put you right in the wheelhouse of all the Gorilla Mill family of cutters. Accurate, dependable, and living on the hairy edge for those “other” end mill and drill lines. RPM, IPM, SFM and Chimp-Loads are calculated at the blink of an eye. A wide variety of machining materials, with no cumbersome long-winded questionnaire asking if all the planets are aligned or if your coolant stinks. And now it’s new and improved! WHAT you say? Yerp, it’s chalked full of calculations and formulas for everything machining so you too can be a “Rock Star” on the shop floor. Walk onto the shop floor with the confidence and swagger of Connor McGregor walking into the Octagon. Share your findings with friends, co-workers, and family…or DON”T and just tell folks it’s all in your noodle upstairs!

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/

Screenshots

GM Pro AF4 screens
GCode Scanner for CNC Machines4 screens

Verdict

The call

The clearest difference is rating: GCode Scanner for CNC Machines at 5.0 against GM Pro AF's 4.5. GM Pro AF's advantage is in-app purchases (none vs 3). On price, ratings volume, update cadence and ads 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. GM Pro AF asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GCode Scanner for CNC Machines holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 15, 2026 and August 27, 2026 respectively.

Scorecard3 real differences · 7 level
GM Pro AF versus GCode Scanner for CNC Machines: the parameters behind the verdict, then further details
ParameterGM Pro AFGCode Scanner for CNC Machines
PriceFreeFree
Rating4.5 (2 ratings)5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings23 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size53 MB77 MB
Age rating4+4+
DeveloperGorilla Tools, IncJeremiah Moore

Customer experience

GM Pro AF

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

GCode Scanner for CNC Machines

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GM Pro AF

No 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

Questions

Is GM Pro AF free?
GM Pro AF is free to download, with no in-app purchases.
Is GCode Scanner for CNC Machines free?
GCode Scanner for CNC Machines is free to download, with in-app purchases available.
Which has better reviews, GM Pro AF or GCode Scanner for CNC Machines?
GCode Scanner for CNC Machines is rated higher. GM Pro AF averages 4.5 out of 5 from 2 ratings, while GCode Scanner for CNC Machines averages 5.0 from 3 ratings.
Do GM Pro AF or GCode Scanner for CNC Machines have ads?
Neither GM Pro AF nor GCode Scanner for CNC Machines shows ads.
Which is updated more often, GM Pro AF or GCode Scanner for CNC Machines?
GM Pro AF ships an update every 3 weeks, and GCode Scanner for CNC Machines every 3 weeks. Most recently, GM Pro AF was updated on September 15, 2026 and GCode Scanner for CNC Machines on August 27, 2026.

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