# CNC Blue vs GCode Scanner for CNC Machines

The clearest difference is review sentiment: GCode Scanner for CNC Machines at 100% against CNC Blue's 50%. GCode Scanner for CNC Machines also leads on price (Free vs $2.99) and rating (5.0 vs 2.5). CNC Blue's advantage is in-app purchases (none vs 3) and update cadence (every 3 days vs every 3 weeks). On ratings volume, ads and device support there is nothing between them.

GCode Scanner for CNC Machines is free to download; CNC Blue costs $2.99 up front. GCode Scanner for CNC Machines sells 3 in-app purchases, starting at $4.99 per 7 days. CNC Blue asks for nothing beyond the download.

GCode Scanner for CNC Machines holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 50% of CNC Blue's written reviews are positive against 100% of GCode Scanner for CNC Machines's.

CNC Blue ships an update every 3 days, GCode Scanner for CNC Machines every 3 weeks. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | CNC Blue | GCode Scanner for CNC Machines |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [2.5 (4 ratings)](https://appshunter.io/ios/app/cnc-blue/id1507725632/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 77 MB |
| Requires iOS | **13.5** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mehmet SIMSEK](https://appshunter.io/developer/740675946) | [Jeremiah Moore](https://appshunter.io/developer/1695450531) |

## What reviewers say

### CNC Blue

[App page](https://appshunter.io/ios/app/cnc-blue/id1507725632)

Control your 3-axis CNC machine via Bluetooth using your iOS device. Generate G-code for various shapes and drawings, then send it directly to your Arduino CNC shield.

**Highlights:** 3-axis CNC control via Bluetooth, G-code generation for shapes (circle, polygon, star, etc.), Custom drawing to G-code conversion, 3D preview of generated designs, Save and share G-code files, Direct G-code sending to Arduino

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

**In-app purchases:** none


### GCode Scanner for CNC Machines

[App page](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022)

This tool allows users to view and simulate CNC machine code (G-code) and 3D model files (STL) before production. It helps prevent errors, save tools, and reduce setup times for machinists, programmers, and engineers.

**Highlights:** G-code viewer with real-time toolpath playback, Error detection for gouges and over-travels, STL model viewer, Universal G-code compatibility, Shop-floor ready interface, Import from cloud storage or local device

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly Membership | $4.99 | per 7 days |
| Pro Monthly Membership | $7.99 | per month |
| Pro Annual Membership | $69.99 | per year |


## Frequently asked questions

### Is CNC Blue free?

CNC Blue costs $2.99, with no in-app purchases.

### Is GCode Scanner for CNC Machines free?

GCode Scanner for CNC Machines is free to download, with in-app purchases available.

### Which has better reviews, CNC Blue or GCode Scanner for CNC Machines?

GCode Scanner for CNC Machines is rated higher. CNC Blue averages 2.5 out of 5 from 4 ratings, while GCode Scanner for CNC Machines averages 5.0 from 3 ratings.

### Do CNC Blue or GCode Scanner for CNC Machines have ads?

Neither CNC Blue nor GCode Scanner for CNC Machines shows ads.

### Which is updated more often, CNC Blue or GCode Scanner for CNC Machines?

CNC Blue ships an update every 3 days, and GCode Scanner for CNC Machines every 3 weeks. Most recently, CNC Blue was updated on October 8, 2026 and GCode Scanner for CNC Machines on September 27, 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.*