# ShapeInfo Plus vs CNC Machinist Calculator Pro

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.

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.

## The numbers

| Metric | ShapeInfo Plus | CNC Machinist Calculator Pro |
| --- | --- | --- |
| Price | **$0.99** | $14.99 |
| Rating | [4.6 (31 ratings)](https://appshunter.io/ios/app/shapeinfo-plus/id983851989/reviews) | **[4.7 (681 ratings)](https://appshunter.io/ios/app/cnc-machinist-calculator-pro/id1037668281/reviews)** |
| Number of ratings | 31 | **681** |
| Positive reviews | 65.5% of reviews | **83.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#63** |
| Size | 11 MB | 47 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Noriyasu Kutsuzawa](https://appshunter.io/developer/668500806) | [Shane Anderson](https://appshunter.io/developer/1037668280) |

## What reviewers say

### ShapeInfo Plus

[App page](https://appshunter.io/ios/app/shapeinfo-plus/id983851989)

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.

**Highlights:** Calculate lengths, angles, and area, Calculate volume for 3D shapes, Supports various 2D and 3D shapes, User-friendly input for calculations, Immediate calculation results

**Features:** Vision Pro support

**In-app purchases:** none


### CNC Machinist Calculator Pro

[App page](https://appshunter.io/ios/app/cnc-machinist-calculator-pro/id1037668281)

**Currently charting:** #63 Top Paid · Productivity (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Useful for thread data
- 👍 Helpful for programming mills and designing fixtures
- 👍 Provides all the technical data needed
- 👍 Great resource for learning as a beginner machinist
- 👍 Fantastic machinist reference and calculator

**What reviewers complain about**

- 🐛 No more support or new features
- 🐛 No easy reference chart for threads
- 🐛 Calculator issues with mathematical operations
- 🐛 Clunky UI and slow animations
- 🐛 Pauses music when opened

**Reported bugs**

- Bolt hole calculations incorrect
- Thermal expansion option not working properly
- Compatibility issues with newer iPhone models

**Requested features**

- Cylindrical grinding calculator
- Tool nose compensation for lathe
- Acme thread calculator
- G2/G3 configuration for milling
- Drill point length calculator


## Frequently asked questions

### Is ShapeInfo Plus free?

ShapeInfo Plus costs $0.99, with no in-app purchases.

### Is CNC Machinist Calculator Pro free?

CNC Machinist Calculator Pro costs $14.99, with no in-app purchases.

### Which has better reviews, ShapeInfo Plus or CNC Machinist Calculator Pro?

CNC Machinist Calculator Pro is rated higher. ShapeInfo Plus averages 4.6 out of 5 from 31 ratings, while CNC Machinist Calculator Pro averages 4.7 from 681 ratings.

### Do ShapeInfo Plus or CNC Machinist Calculator Pro have ads?

Neither ShapeInfo Plus nor CNC Machinist Calculator Pro shows ads.

### Which is updated more often, ShapeInfo Plus or CNC Machinist Calculator Pro?

ShapeInfo Plus ships an update every 6 months, and CNC Machinist Calculator Pro every 2 months. Most recently, ShapeInfo Plus was updated on November 1, 2026 and CNC Machinist Calculator Pro on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*