G-Code Guru: CNC Machinist Kit
Editor, Calculator & Tooling
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Stop Googling G-codes on the shop floor. G-Code Guru puts every reference, calculator, and lesson a CNC programmer needs right in your pocket - fully offline, ready at the machine.
REFERENCE
- 124 G-Code and M-Code entries with descriptions, examples, and usage notes
- 7 controllers: Fanuc, Haas, Siemens, Mazak, Okuma, Grbl, Marlin
- Search, filter by category, and save favorites for quick access
CODE EDITOR
- Syntax highlighting for G-Code with line numbers
- Real-time validation catches errors before your machine does
- Safety checks: spindle, tool length comp, safe Z, program endings
- Safe code templates for headers, tool changes, and endings
- Export programs as .nc files, ready for the controller
SPEEDS & FEEDS CALCULATOR
- Calculate RPM, feed rate, chip load, and material removal rate
- Material database: aluminum, steel, stainless, titanium, plastics, composites
- Tool database: end mills, drills, taps, inserts
- Save favorite calculation presets
TRIGONOMETRY CALCULATOR
- Right triangle solver
- Bolt circle generator
- Taper and angle calculations
TOOLING LIBRARY
- Cutting tools: end mills, drills, taps, reamers, boring bars, turning tools
- Tool holders: CAT, BT, HSK, ER collets, straight shank, Morse taper
- Insert specifications: CNMG, WNMG, DNMG, and more
- Thread specs: UNC, UNF, Metric, NPT, BSP
- Drill and tap charts with tap drill reference
LEARNING PATH
- 55 structured lessons across 11 modules
- 163 quiz questions with immediate feedback
- 15 interactive code challenges with validation
- Topics: fundamentals, motion, tool management, M-codes, safety, macro programming, multi-axis, lathe, 3D printing
- Track your progress and bookmark lessons
KNOWLEDGE BASE
- In-depth articles on chip load, surface speed, tool materials, formulas, and best practices
SCAN & ANALYZE
- Point your camera at a machine screen or printed program
- On-device OCR extracts the G-Code
- AI-powered analysis explains what the program does step by step
- Safety assessment flags missing safety blocks and risky moves
- Import scanned code into the editor
BUILT FOR THE SHOP FLOOR
- 100% offline - no internet required
- Dark industrial theme, easy on the eyes
- Works on iPhone and iPad
G-Code Guru Pro unlocks the full toolkit: all 11 learning modules, unlimited saves, the complete tooling library, knowledge base, calculation presets, code scanning analysis, and every future update.
Privacy Policy: https://gcode-guru-legal.pages.dev/privacy
Terms of Use: https://gcode-guru-legal.pages.dev/terms
Ratings & Reviews
Fixed an issue that could prevent purchases from completing
The developer, Pawel Dembski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pawel Dembski
- Size
- 31.2 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 7 more
- English, German, Japanese, Korean, Polish, Russian, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Contains
User-Generated Content
- In-App Purchases
Yes
- G-Code Guru Pro $59.99
- Pro Annual $19.99
- Copyright
- © deepskyapps