Best Cnc Code Apps

210+ iOS apps curated and reviewed

4.4 avg rating
14 free apps
Updated May 2026

With an average user rating of 4.4★, the cnc code category is one of the App Store's strongest. Browse all 210+ apps we track, sorted so the most loved ones surface first.

Compare top Cnc Code Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CNC CodeCNC CodeFreeNoYesJul 2026
2G-Code Guru: CNC Machinist KitG-Code Guru: CNC Machinist KitFree5.0★ (2)NoYesJul 2026
3Sequence :: G-Code editor, CNCSequence :: G-Code editor, CNCFree4.2★ (62)NoYesJul 2026
4CNC Machinist Calculator UltraCNC Machinist Calculator UltraFree4.9★ (24)NoYesJul 2026
5CNC Machinist CalculatorCNC Machinist CalculatorFreeYesYesJul 2026
6CNC Lathe Simulator LiteCNC Lathe Simulator LiteFree4.0★ (10)NoNoMay 2026
7G Code Generator CNC OD IDG Code Generator CNC OD ID$3.993.8★ (18)NoNoJul 2026
8Easy CNCEasy CNCFree3.0★ (8)NoNoJul 2026

Top Picks for Cnc Code

G-Code Guru: CNC Machinist Kit#2

G-Code Guru: CNC Machinist Kit by Pawel Dembski

Editor, Calculator & Tooling
Strong Contender
📚 Education
5.0(2 ratings)
FreeIn-App Purchases
G-Code Guru: CNC Machinist Kit screenshot 1
G-Code Guru: CNC Machinist Kit screenshot 2
G-Code Guru: CNC Machinist Kit screenshot 3
G-Code Guru: CNC Machinist Kit screenshot 4
G-Code Guru: CNC Machinist Kit screenshot 5
G-Code Guru: CNC Machinist Kit screenshot 6

This app provides CNC machinists with offline access to G-code references, calculators, and lessons. It includes a code editor with syntax highlighting and safety checks, a speeds & feeds calculator, and a trigonometry solver. Users can also access a tooling library and a learning path with quizzes and challenges.

Sequence :: G-Code editor, CNC#3

Sequence :: G-Code editor, CNC by Hypercube GFX, Inc.

Machining, CAD Modeling, CAM
Worth Considering
🎨 Graphics & Design
4.2(62 ratings)
FreeIn-App Purchases
Sequence :: G-Code editor, CNC screenshot 1
Sequence :: G-Code editor, CNC screenshot 2
Sequence :: G-Code editor, CNC screenshot 3
Sequence :: G-Code editor, CNC screenshot 4
Sequence :: G-Code editor, CNC screenshot 5

This app is a text editor for G-Code and M-Code, designed for machining on CNC and lathe machines. It allows users to import, save, and visualize STL models with a built-in 3D renderer. Subscriptions are available and can be canceled anytime.

More Cnc Code apps to explore

4
CNC Machinist Calculator Ultra
CNC Machinist Calculator Ultra
CNC Machinist Calculator Ultra
All-in-One Machining Tool
Free

This app provides machinists and engineers with a comprehensive suite of tools for CNC operations. It offers a wide range of calculations for turning, milling, drilling, and more, designed to enhance precision and boost productivity.

Cutting speed and feed recommendationsTap drill size calculationsTrue position calculations
📊 Productivity
(24)
freemium
5
CNC Machinist Calculator
CNC Machinist Calculator
CNC Machinist Calculator
Speed Feed RPM Milling
Free
🔧 Utilities
(0)
6
CNC Lathe Simulator Lite
CNC Lathe Simulator Lite
CNC Lathe Simulator Lite
CNC Simulator Fanuc Code
Free

Learn CNC lathe programming with a 3D simulator. Practice G-code, edit control programs, and visualize machining operations. Ideal for students and aspiring metalworking specialists.

G-code programming practice3D simulation of lathe operationsControl program file management
📚 Education
(10)
free
7
G Code Generator CNC OD ID
G Code Generator CNC OD ID
G Code Generator CNC OD ID
by Motionics, LLC
$3.99

This utility app simplifies CNC G-code generation for various OD and ID machining tasks. Input numerical values to quickly create codes for angles, radii, chamfers, and more. Easily copy, email, or screenshot your generated G-codes.

Generate G-codes for OD machiningGenerate G-codes for ID machiningInput numerical values for calculations
🔧 Utilities
(18)
free
8
Easy CNC
Easy CNC
Easy CNC
by Siemens AG
Free

Access over 5000 pages of CNC training manuals and content in PDF format, updated with the latest information. Features a PDF reader with annotation and bookmarking, a G-Code tool for finding compatible codes, and a video library. Includes a glossary and links to online communities.

Digital training manualsPDF reader with annotationsG-Code tool
📊 Productivity
(8)
free
9
The Phillips Machinist
The Phillips Machinist
The Phillips Machinist
by Phillips Corporation
Free

Access essential machine codes, calculators, and practical resources for machinists. Get direct support from engineers and explore a library of machining information. Enhance your productivity and problem-solving on the shop floor.

Haas G & M reference codesError and Alarm CodesCalculator library (Inch/Metric)
📊 Productivity
(394)
free with in-app purchases
10
CNC Lathe calculator
CNC Lathe calculator
CNC Lathe calculator
GCode & Macro program master
$4.99

This utility app assists machining professionals with CNC lathe and ordinary lathe operations. It offers quick calculations for common parts, programming, and measurements, including arc tangent points, threads, and tapers.

Arc tangent point calculation with G Code generationThread calculation and program generationCNC Macro program for common graphics
🔧 Utilities
(4)
paid
11
Cnc Turning Programming App
Cnc Turning Programming App
Cnc Turning Programming App
Fast CNC Turning Code Creator
Free
🔧 Utilities
(0)
12
CNC Lathe Simulator
CNC Lathe Simulator
CNC Lathe Simulator
CNC Simulator Fanuc Code
$6.99

This educational tool simulates a CNC lathe for beginners in machine building. It allows users to learn G-code programming for turning operations with 3D visualization of tool movements and workpiece processing. Ideal for students and distance learning in metallurgy and engineering.

G-code programming for turning operations3D simulation of lathe and tool movementsWorkpiece surface visualization
📚 Education
(14)
free
13
iNC-Mill
iNC-Mill
iNC-Mill
NC Editor · 3/5 Axis
Free

This app provides a portable CNC workstation for editing, simulating, and calculating machining parameters. It allows for on-site tuning, travel support, and confidential machining without cloud dependency. Features include process calculators, an NC program editor, and a 3D toolpath viewer.

Smart NC/G-code editingCNC simulationProcess calculators
🔧 Utilities
(1)
freemium
14
CNC Lathe Calculator & Program
CNC Lathe Calculator & Program
CNC Lathe Calculator & Program
一键生成G代码,精准计算机械公差、切削参数等加工数据
Free

This tool assists CNC lathe operators and programmers by generating G-code and performing complex calculations. It offers various processing templates, thread calculations, and a wide range of engineering tools for efficient machining.

G-code generationTangent point and arc calculationsMultiple processing templates
🔍 Reference
(2)
freemium
15
FSWizard
FSWizard
FSWizard
CNC Machinist Calculator
Free

This app is a comprehensive calculator for CNC machinists, simplifying the calculation of speeds and feeds for milling, drilling, and turning operations. It automatically suggests optimal cutting conditions based on material choices and supports advanced features like chip thinning and HSM machining.

Milling, drilling, and turning speeds and feedsAutomatic cutting condition suggestionsChip thinning and HSM support
📊 Productivity
(47)
free
16
CNC Machinist Calculator Pro
CNC Machinist Calculator Pro
CNC Machinist Calculator Pro
by Shane Anderson
$14.99

This app provides a comprehensive suite of calculators and tools for CNC machinists, engineers, and hobbyists. It offers specialized calculations for turning, milling, drilling, threading, and geometric tolerances, along with material data and G-code generation.

Turning, Milling, and Drilling CalculatorsThread and Bolt Pattern CalculatorsGeometric Tolerance (GD&T) Tools
📊 Productivity
(642)
paid
17
GCode Scanner & STL Viewer
GCode Scanner & STL Viewer
GCode Scanner & STL Viewer
Interpret CNC machine code
Free

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 playbackError detection for gouges and over-travelsSTL model viewer
🔧 Utilities
(2)
free with in-app purchases
18
CNC Blue
CNC Blue
CNC Blue
CNC GRBL Control via Bluetooth
$2.99

Control your 3-axis CNC machine via Bluetooth using your iOS device. Generate G-code for various shapes and drawings, then send it directly to your Arduino CNC shield.

3-axis CNC control via BluetoothG-code generation for shapes (circle, polygon, star, etc.)Custom drawing to G-code conversion
🔧 Utilities
(4)
paid
19
CNC Alarm Tool
CNC Alarm Tool
CNC Alarm Tool
Alarm and Diagnosis Tool
Free

Diagnose, look up, and fix alarm codes for FANUC CNC machines and devices. Search by name or text, or use your camera to recognize codes on screen. Get tips to resolve issues.

Diagnose FANUC CNC alarmsLook up alarm codes by nameSearch alarms by text
🔍 Reference
(6)
free
20
CNC
CNC
CNC
2.5D CNC simulation, G41/G42
$3.99

This app offers a high-quality 2D.5 CNC milling machine simulation with support for radius compensation G41/G42. It features sharp, zoomable vector graphics and includes all G & M functions with examples for educational purposes.

2.5D CNC milling simulationG41/G42 radius compensationSharp, zoomable vector graphics
📚 Education
(67)
free

FAQ about Cnc Code

Are there free cnc code apps for iPhone?
Yes — 14 of the top cnc code apps we rank are free to download, including CNC Code and G-Code Guru: CNC Machinist Kit.
CNC Code has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 210+ cnc code apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.