# CNC VMC Simulator vs G

The clearest difference is price: G at Free against CNC VMC Simulator's $9.99. G also leads on rating (4.9 vs 2.9) and update cadence (every 3 weeks vs every 3 months). CNC VMC Simulator's advantage is in-app purchases (none vs 2) and iOS requirement (16.6 vs 26.0). On ratings volume, ads and device support there is nothing between them.

G is free to download; CNC VMC Simulator costs $9.99 up front. G sells 2 in-app purchases, starting at $24.99 per year. CNC VMC Simulator asks for nothing beyond the download.

G holds the better App Store score, 4.9 against 2.9. Both are backed by a comparable volume of ratings — 9 and 15 respectively.

CNC VMC Simulator ships an update every 3 months, G every 3 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | CNC VMC Simulator | G |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [2.9 (9 ratings)](https://appshunter.io/ios/app/cnc-vmc-simulator/id1614666556/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/g-code-guru-cnc-machinist-kit/id6758800091/reviews)** |
| Number of ratings | 9 | **15** |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 43 MB | 40 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [旭 陈](https://appshunter.io/developer/6780413573) | [Pawel Dembski](https://appshunter.io/developer/1752941251) |

## What reviewers say

### CNC VMC Simulator

[App page](https://appshunter.io/ios/app/cnc-vmc-simulator/id1614666556)

This app simulates CNC milling machine operations, allowing users to program and visualize tool paths in 3D. It helps beginners understand G-code programming for mechanical engineering.

**Highlights:** G-code programming editor, 3D tool path visualization, Control program execution, Geometric tool parameter settings, Machined surface visualization, G-code reference guide

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

**In-app purchases:** none


### G

[App page](https://appshunter.io/ios/app/g-code-guru-cnc-machinist-kit/id6758800091)

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.

**Highlights:** Offline G-code and M-code reference, Code editor with syntax highlighting and safety checks, Speeds & feeds calculator, Trigonometry calculator, Tooling library, Structured learning path with quizzes, AI-powered code scanning and analysis

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $24.99 | per year |
| G-Code Guru Pro | $69.99 | one-time |


## Frequently asked questions

### Is CNC VMC Simulator free?

CNC VMC Simulator costs $9.99, with no in-app purchases.

### Is G free?

G is free to download, with in-app purchases available.

### Which has better reviews, CNC VMC Simulator or G?

G is rated higher. CNC VMC Simulator averages 2.9 out of 5 from 9 ratings, while G averages 4.9 from 15 ratings.

### Do CNC VMC Simulator or G have ads?

Neither CNC VMC Simulator nor G shows ads.

### Which is updated more often, CNC VMC Simulator or G?

CNC VMC Simulator ships an update every 3 months, and G every 3 weeks. Most recently, CNC VMC Simulator was updated on November 1, 2026 and G on November 1, 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.*