iHarmonizer vs GCode Scanner for CNC Machines
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iHarmonizer
Record machining noise, save files, and send for free evaluation. An in-app purchase allows for immediate, on-site analysis to detect chatter and suggest optimal spindle speeds.
- Record machining noise
- Save audio files
- Free MLI evaluation
- In-app purchase for immediate analysis
- Chatter detection
- Suggests alternate spindle speeds
- Indicates no stable spindle speed
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IHarmonizer is a free application for recording machining noise, saving the file, and sending it to MLI for a free evaluation (send to harmonizer@mfg-labs.com). If the user desires he may do an "in-app" purchase to do the evaluation immediately and on site. The program detects chatter and suggests alternate spindles speeds to possibly eliminate the chatter. It also will terminate and indicate if there is no stable spindle speed to be found. Please contact harmonizer@mfg-labs.com for any questions.
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.
- 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
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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
Verdict
iHarmonizer and GCode Scanner for CNC Machines both sit at 5.0 stars, but that hides the real split: 100% of GCode Scanner for CNC Machines's written reviews are positive against 0% of iHarmonizer's. GCode Scanner for CNC Machines also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (3 vs 1). iHarmonizer's advantage is iOS requirement (13.0 vs 16.4). On price, rating, ads and in-app purchases 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
Both are free to download. iHarmonizer sells 5 one-off in-app purchases and GCode Scanner for CNC Machines sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for iHarmonizer against 5.0 for GCode Scanner for CNC Machines. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 0% of iHarmonizer's written reviews are positive against 100% of GCode Scanner for CNC Machines's.
iHarmonizer ships an update every 3 months, GCode Scanner for CNC Machines every 3 weeks. The most recent releases landed on October 1, 2026 and September 27, 2026 respectively.
| Parameter | iHarmonizer | GCode Scanner for CNC Machines |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 98 MB | 77 MB |
| Age rating | 17+ | 4+ |
| Developer | Manufacturing Laboratories, Inc. | Jeremiah Moore |
Customer experience
iHarmonizer
GCode Scanner for CNC Machines
In-app purchases
iHarmonizer
- Regulations 10 Pack$24.99
- Regulations 50 Pack$99.99
- Regulations 100 Pack$99.99
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- Regulations 200 Pack$299.99
- Regulations 500 Pack$299.99
GCode Scanner for CNC Machines
- Pro Weekly Membership$4.997 Days
- Pro Monthly Membership$7.991 Month
- Pro Annual Membership$69.991 Year
Questions
Is iHarmonizer free?
Is GCode Scanner for CNC Machines free?
Which has better reviews, iHarmonizer or GCode Scanner for CNC Machines?
Do iHarmonizer or GCode Scanner for CNC Machines have ads?
Which is updated more often, iHarmonizer or GCode Scanner for CNC Machines?
Other comparisons
