ShapeInfo Plus vs CNC Machinist Calculator Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShapeInfo Plus
This app calculates lengths, angles, and areas for various geometric shapes. It supports a wide range of 2D and 3D shapes, making it a handy tool for engineers and students.
- Calculate lengths, angles, and area
- Calculate volume for 3D shapes
- Supports various 2D and 3D shapes
- User-friendly input for calculations
- Immediate calculation results
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Feature The ShapeInfo is useful application for calculating shape lengths, angles and area. You can get some calculated lengths and angles of the shape from choosing and entering values in the boxes upon the orange points. How to use 1. Choosing shape from the list. 2. Enter the value to the box upon the orange points. You can change the formation of the orange points by "NEXT" button (orange color) or tapping orange/gray point near the box that you are going to enter the value. 3. You can get calculated values of the shape, immediately after entering values. Applications - For the software developer, the mechanical engineer, the dynamics engineer and the surveying engineer. - Study mathematics for high school students. Functions - Calculate lengths, angles and the area for the right triangle, the triangle, the sector, the circle and ellipse. - Calculate volume for the triangular pyramid, the triangular prism, the circular cone, circular cylinder and the sphere. Shapes - Right triangle - Triangle - Sector - Circle - Ellipse - Triangular pyramid - Triangular prism - Circular cone - Circular cylinder - Oblique cutting circular cylinder - Sphere Disclaimer Appsys does not accept responsibility for any loss, which may arise from reliance on the software or materials published on this site.
CNC Machinist Calculator Pro
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 Calculators
- Thread and Bolt Pattern Calculators
- Geometric Tolerance (GD&T) Tools
- Material Property and Weight Calculator
- G-code Export for Chamfers and Tapers
- Unit and Hardness Converters
- Machinist Forum and Test
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CNC Machinist Calculator Pro is a machining calculator designed for manufacturing engineers, machinists, CNC operators, tool & die makers, and at home hobbyists. CNC Machinist Calculator Pro is great for CNC programmers or machine operators who need to make quick calculations on the fly. It's also a great tool for quoting new work. Visit www.cncdirt.com for more info This CNC machining calculator app includes the following features: 1. Turning Calculators for lathe operators *Cutting Speed Calculation by Material *Grooving/Cut off cycle time Calculation *Rough turn cycle time Calculation *Cutting Speed Calculations *Cutting speed to RPM conversions *Feed per rev - Feed per minute conversions 2. Milling Calculators for mill operators *Cutting Speed & Feed Calculation by Material *RPM to Cutting Speed Conversions *Feed per Minute - Feed per tooth Conversions *Radial Chip Thinning Calculation *Metal Removal rate Calculation *Milling cut time Calculation *Circle Milling Calculations - Both inner & outer *Ball Mill Cusp Height Calculation *Ball Mill Effective diameter/Chip Thinning Calculator *Thread Milling Calculations - Both inner & outer 3. Drilling Calculators *Cutting Speed Calculation by material *Cycle time calculation *Drill point Length calculation 4. Gun drilling Calculators *Cutting Speed Calculation by material *Cycle time calculation 5. Thread Calculators 6. True Position Calculators 7. Bolt Pattern Calculators 8. Surface Finish Calculators 9. Drill & Tap charts 10. Thread data for the following threads: * 60° Threads (Pitch Ø, Minor Ø, Major Ø, Helix, Lead, etc.) * NPT Threads * Acme Threads * STI Threads 11. Thread over 3 wire info (Size limits, min, max, & best wire) 12. Center drill dimensions 13. Unit converter 14. Hardness conversions 15. G-codes 16. M-codes 17. Blue Print Geometric Tolerance Descriptors - GD&T 18. SFM calculator for drilling, milling, & turning over 170 materials 19. Tap Drill Calculator for roll form & cut taps 20. Various Geometric calculators 21. Triangle Solver 22. CNC keyway calculator 23. Custom macro variables, logic, arguments, & arithmetic data 24. Machinist Forum 25. Export G-code for internal & external chamfers, tapers, & radii with tool nose comp. 26. Circle segment calculator ( arc calculator ) 27. National Pipe Thread data - NPT threads 28. Material Property Search with machinability info 29. Material Weight Calculator for over 170 materials & 10 shapes 30. Tool Wear section with images helpful info to improve tool life 31. Machinist Test with 6 categories to test your strengths & weaknesses 32. Socket Head Cap Screw hole dimensions 33. Scientific Calculator which includes: * sine (sin) * cosine (cos) * tangent (tan) * arcsine (sin-1) * arccosine (cos-1) * arctangent (tan-1) * square (x²) * cube (x³) * pi (π) * square root (√) * base 10 logarithm (log) * exponential function (ex) * natural logarithm (In). 34. Linear Thermal Expansion Calculator 35. Grinding Calculations * Plunge Grind - Q Prime, grit penetration & aggressiveness * Surface Grind - Q Prime, grit penetration & aggressiveness * Grinding Wheel Velocity * Work piece Velocity * Work piece RPM to wheel RPM ratio cylindricity error calculator * Wheel Mesh (Grit) size conversion * Equivalent wheel diameter 36. More to come... We're quickly becoming the best engineering calculator on the market Check us out at www.cncdirt.com
Screenshots
Verdict
The clearest difference is price: ShapeInfo Plus at $0.99 against CNC Machinist Calculator Pro's $14.99. CNC Machinist Calculator Pro's advantage is review sentiment (84% vs 66%) and update cadence (every 2 months vs every 6 months). On rating, ads, in-app purchases and monetization model 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
ShapeInfo Plus costs $0.99 and CNC Machinist Calculator Pro $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for ShapeInfo Plus against 4.7 for CNC Machinist Calculator Pro. That said, the two scores are not equally well evidenced: CNC Machinist Calculator Pro has 681 ratings behind it against 31, so its average is the more settled of the two. Written reviews are what separate them: 66% of ShapeInfo Plus's written reviews are positive against 84% of CNC Machinist Calculator Pro's.
ShapeInfo Plus ships an update every 6 months, CNC Machinist Calculator Pro every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | ShapeInfo Plus | CNC Machinist Calculator Pro |
|---|---|---|
| Price | $0.99 — better | $14.99 |
| Rating | 4.6 (31 ratings) | 4.7 (681 ratings) — better |
| Positive reviews | 65.5% of reviews | 83.9% of reviews — better |
| Number of ratings | 31 | 681 — better |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #63 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 11 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Noriyasu Kutsuzawa | Shane Anderson |
Customer experience
ShapeInfo Plus
CNC Machinist Calculator Pro
Bugs and requests
ShapeInfo Plus
Not enough reviews yet to summarise bugs or requests.
CNC Machinist Calculator Pro
Reported bugs
3 issues- Bolt hole calculations incorrect
- Thermal expansion option not working properly
- Compatibility issues with newer iPhone models
Requested features
9 requests- Cylindrical grinding calculator
- Tool nose compensation for lathe
- Acme thread calculator
- G2/G3 configuration for milling
- Drill point length calculator
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- Keensert and Helicoil drill/tap data
- G and M code dictionary
- Ceramic tool material support
- Carbon fiber, fiberglass, and common plastics in feeds/speeds
In-app purchases
ShapeInfo Plus
No in-app purchases
CNC Machinist Calculator Pro
No in-app purchases
Questions
Is ShapeInfo Plus free?
Is CNC Machinist Calculator Pro free?
Which has better reviews, ShapeInfo Plus or CNC Machinist Calculator Pro?
Do ShapeInfo Plus or CNC Machinist Calculator Pro have ads?
Which is updated more often, ShapeInfo Plus or CNC Machinist Calculator Pro?
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