i vs GCode Scanner for CNC Machines
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
This utility app assists machinists with CNC calculations, including cutting speed, RPM, and feed rate. It also provides databases for hole and shaft tolerances, as well as detailed thread specifications.
- Cutting speed calculation
- RPM calculation
- Feed rate calculation
- Hole and shaft tolerance database
- Thread data
- Milling, drilling, and turning operations
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iMachinist is a simple to use CNC calculator app that calculates for you the cuttings speed, RPM, feed rate and more for your milling, drilling and turning operations. iMachinist also includes a database for Hole and Shaft Tolerances and different Threads. Threads Data: - Outer Diameter (max/min) - Pitch Diameter (max/min) - Core Diameter (max/min) - Thread Height (max/min) Tolerance Data: - Zone (Shaft/Hole) - Grade (Shaft/Hole) - Diameter (Shaft/Hole) Cutting Calculator: - Tool Diameter - Cutting Speed - Spindle Speed - Number of Teeth - Feed per Tooth - Feed Rate
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
The clearest difference is review sentiment: GCode Scanner for CNC Machines at 100% against i's 33%. GCode Scanner for CNC Machines also leads on rating (5.0 vs 2.6) and update cadence (every 3 weeks vs every 16 months). i's advantage is in-app purchases (none vs 3) and ratings volume (9 vs 3). On price, ads, device support and iOS requirement 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. GCode Scanner for CNC Machines sells 3 in-app purchases, starting at $4.99 per 7 days. i asks for nothing beyond the download.
GCode Scanner for CNC Machines holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews point the same way: 33% of i's written reviews are positive against 100% of GCode Scanner for CNC Machines's.
i ships an update every 16 months, GCode Scanner for CNC Machines every 3 weeks. The most recent releases landed on September 16, 2026 and August 27, 2026 respectively.
| Parameter | i | GCode Scanner for CNC Machines |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (9 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 — better | 3 |
| Update frequency | Every 16 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 8 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | ilan TETRUASHVILI | Jeremiah Moore |
Customer experience
i
GCode Scanner for CNC Machines
In-app purchases
i
No in-app purchases
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 i free?
Is GCode Scanner for CNC Machines free?
Which has better reviews, i or GCode Scanner for CNC Machines?
Do i or GCode Scanner for CNC Machines have ads?
Which is updated more often, i or GCode Scanner for CNC Machines?
Other comparisons
