Comparison

Machinist Calc Pro 2 vs G Code Generator CNC OD ID

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

Head to head
About

Machinist Calc Pro 2

This app provides comprehensive speed and feed calculations for various machining processes including milling, turning, drilling, and boring. It includes material and tool settings, drill and thread chart look-ups, and right triangle solutions.

Highlights
  • Speed and feed calculations for milling, turning, drilling, boring
  • Material and tool setting selection
  • Built-in drill and thread chart look-ups
  • Right triangle math and trigonometric functions
  • Bolt-circle pattern layouts
  • 3-Wire measurement calculations
  • U.S. and Metric unit conversions
Features
Read full description

The Machinist Calc Pro 2 now includes materials and tool settings combined with DOC and WOC to solve all your speed and feed calculations for face, end or slot milling plus turning, drilling and boring. It also gives you step-saving drill and thread chart look-ups, right triangle solutions and bolt-circle patterns. And while perhaps obvious, if you change from an iOS device to a non-iOS device, you WILL need to buy a new license as they are incompatible. FEATURES: • Created by Calculated Industries, the originator of the award-winning Construction Master calculators • Built-in help, just press and hold a key • All the functionality and solutions of the handheld Machinist Calc Pro 2 calculator and optimized for the iPhone and/or iPad device user • Entry Editing Backspace Key – with a swipe of a finger (left - to - right) • A complete User’s Guide is available free at www.calculated.com FUNCTIONS AND CALCULATIONS: • NEW - Machining-specific keys to enter or calculate Surface Feet per Minute (SFM), Inches per Tooth (IPT), Inches per Minute (IPM), Inches per Revolution (IPR), # of Teeth, Depth of Cut (DOC), Width of Cut (WOC) and Length of Cut (LOC) • NEW - Materials - Choose from 20 popular Materials • NEW - Processes - Face Milling, End Milling, Slot Milling, Turning, Boring, Drilling • NEW - Tools - High Speed, Carbide and High Performance • Speeds and Feeds - calculate for milling, turning and drilling; cutting speed, spindle speed (RPM), feed rate (IPM), cutting feed, feed per tooth/chip load, number of Teeth and Radial Chip Thinning adjustment factor • Built-in Drill and Thread Size Tables save time and steps (Compliant with ANSI/ASME B1.1-2003 and ANSI/ASME B1.13M-2005) • Enter Numeric, Fractional, Metric Thread Sizes and Drill Sizes - and display tap, roll tap, close and free fit drill sizes plus pitch, major and minor diameters • Right Triangle Math - plus trigonometric functions • Drill Points - enter the cutting angle and drill size to calculate the drill point cut depth • Bolt Pattern Layouts - enter start angle, number of bolts, diameter and optional x, y offset; calculate x and y coordinates. Find center-to-center spacing for bolt pattern layouts • 3-Wire Measure - enter Wire Size (or use calculated Best Wire size) and 3-Wire Measurement to calculate pitch diameter ADDITIONAL FEATURES: • Thread Classification Tables ◦ U.S. - Internal (3) 1B, 2B, 3B - External (3) 1A, 2A, 3A ◦ Metric - Internal (14) 3G-9G and 3H-9H - External (28) 3g-9g, 3h-9h, 3e-9e, 3f-9f • U.S. and Metric Unit Entries and Conversions ◦Decimal Inches/mils ◦ Feet-Inch-Fractions ◦ m, mm, cm ◦ Area, Volume and Weight • Works as a Standard Calculator TRADEMARKS: Machinist Calc® is a registered trademark of Calculated Industries, Inc.

About

G Code Generator CNC OD ID

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.

Highlights
  • Generate G-codes for OD machining
  • Generate G-codes for ID machining
  • Input numerical values for calculations
  • Supports angle and radius conversions
  • Handles chamfer and step operations
  • Copy G-codes to clipboard
  • Email generated G-codes
Features
Currently charting
Read full description

A handy tool to generate CNC G codes with just a few number inputs. It works with different OD and ID machining scenarios: OD: - OD Angle into Radius, - OD Radius into Angle, - Angle to Angle Compensation, - OD Chamfer, - OD Radius, - OD into Radius to Step ID: - ID Angle into Radius, - ID Radius into Angle CW, - ID Radius into Angle CCW, - ID Chamfer - ID Radius into Shoulder, - ID Radius User can choose to copy and paste generated G codes to clipboard or email the G codes or save a screenshot by simply tapping a button.

Screenshots

Machinist Calc Pro 24 screens
G Code Generator CNC OD ID4 screens

Verdict

The call

The clearest difference is review sentiment: G Code Generator CNC OD ID at 63% against Machinist Calc Pro 2's 0%. G Code Generator CNC OD ID also leads on price ($3.99 vs $29.99) and update cadence (every 3 weeks vs every 9 months). Machinist Calc Pro 2's advantage is rating (4.5 vs 3.9). On ads, in-app purchases and device support 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

Machinist Calc Pro 2 costs $29.99 and G Code Generator CNC OD ID $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Machinist Calc Pro 2 holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 6 and 19 respectively. Written reviews complicate that: 0% of Machinist Calc Pro 2's written reviews are positive against 63% of G Code Generator CNC OD ID's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Machinist Calc Pro 2 ships an update every 9 months, G Code Generator CNC OD ID every 3 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard8 real differences · 3 level
Machinist Calc Pro 2 versus G Code Generator CNC OD ID: the parameters behind the verdict, then further details
ParameterMachinist Calc Pro 2G Code Generator CNC OD ID
Price$29.99$3.99 — better
Rating4.5 (6 ratings) — better3.9 (19 ratings)
Positive reviews0.0% of reviews62.5% of reviews — better
Number of ratings619 — better
Update frequencyEvery 9 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#174 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.09.0 — better
Further details — not scored
Size25 MB19 MB
Age rating12+4+
DeveloperCalculated IndustriesMotionics LLC

Customer experience

Machinist Calc Pro 2

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

G Code Generator CNC OD ID

All ratings19 ratings
Positive73.7%
Neutral0.0%
Negative26.3%
Written reviews24 reviews
Positive62.5%
Neutral0.0%
Negative37.5%

In-app purchases

None

Machinist Calc Pro 2

No in-app purchases

None

G Code Generator CNC OD ID

No in-app purchases

Questions

Is Machinist Calc Pro 2 free?
Machinist Calc Pro 2 costs $29.99, with no in-app purchases.
Is G Code Generator CNC OD ID free?
G Code Generator CNC OD ID costs $3.99, with no in-app purchases.
Which has better reviews, Machinist Calc Pro 2 or G Code Generator CNC OD ID?
Machinist Calc Pro 2 is rated higher. Machinist Calc Pro 2 averages 4.5 out of 5 from 6 ratings, while G Code Generator CNC OD ID averages 3.9 from 19 ratings.
Do Machinist Calc Pro 2 or G Code Generator CNC OD ID have ads?
Neither Machinist Calc Pro 2 nor G Code Generator CNC OD ID shows ads.
Which is updated more often, Machinist Calc Pro 2 or G Code Generator CNC OD ID?
Machinist Calc Pro 2 ships an update every 9 months, and G Code Generator CNC OD ID every 3 weeks. Most recently, Machinist Calc Pro 2 was updated on November 1, 2026 and G Code Generator CNC OD ID on November 6, 2026.

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