CNC Blue vs Genmitsu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CNC Blue
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.
- 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
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You can control 3 axis of your CNC milling machine which connected Arduino CNC shield with a suitable bluetooth module for iOS device at baud rate 9600. The application has G code build function modules which are circle, polygon, star, rectangle, arc, draw, gear and spiral modules. Some modules has cut inside and cut deep functions. You can select cut tool diameter. Draw module is another fantastic mode to allow to you can use on milling what you draw on the screen with selectable depth of cut function. Before use this function you have to calculate your CNC working area to fit your drawing to this area. All these modules can capable record builded G codes to a file with module name.For save G codes you have to open "save all calculations to files" switch from setting menu. You can share builded G codes. And you can send received Gcode to Arduino via bluetooth with send page, only load the received .nc file. All builded G codes automatically transfer send page, you need to touch send button to start cnc milling, application will send your Gcode to Arduino via bluetooth connection which you done from the application. You can share with airdrop, e-mail etc. all .nc files on the Files page. And polygon, star, rectangle, arc, draw, gear, spiral modes has 3D view function to show you what you build in 3D view . *IMPORTANT: The CNC Blue application has Stop button, but FOR YOUR SAFETY YOU HAVE TO USE YOUR OWN EMERGENCY STOP BUTTON WITH WIRE CONNECTED TO YOUR ARDUINO CNC SHIELD in case of needed to use.* Why I need to change baud rate to 9600: The application baud rate 9600. Because of that we need to change baud rate of Grbl from config.h file to correctly communicate with Grbl via bluetooth module. How you can set baud rate to 9600; You can find the Arduino Grbl "config.h" file from "documents/arduino/libraries/grbl/config.h" and change baud rate to #define BAUD_RATE 9600 How to connect your bluetooth module to Arduino CNC shield : Bluetooth module "TX" to Arduino CNC shield "RX", Bluetooth module "RX" to Arduino CNC shield "TX", Bluetooth module "VCC" to Arduino CNC shield "3V3", Bluetooth module "GND" to Arduino CNC shield "GND" Pins must be connected correctly to protect your Arduino-CNC shield and bluetooth module.
Genmitsu
This app provides an all-in-one platform for controlling and creating with GRBL CNC routers and laser machines. It streamlines the workflow from design to machine operation, offering intuitive control and real-time monitoring for makers and creators.
- Wi-Fi connectivity to machines
- Simplified network setup
- Intuitive control interface
- File re-editing for laser engraving
- Advanced image processing
- Real-time monitoring of tasks
- Quick image upload from gallery
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Overview Manage Your CNC and Laser Projects Smarter, Faster, Anywhere The Genmitsu App is an all-in-one control and creation platform designed for GRBL CNC routers and Genmitsu laser machines. It connects seamlessly to your machines via Wi-Fi and provides an intuitive, purpose-built experience for makers, creators, and CNC enthusiasts, allowing you to focus on carving and engraving rather than setup and troubleshooting. With continuous enhancements up to version 2.4, the Genmitsu App integrates design, editing, and machine control into a streamlined workflow, giving you greater flexibility and control over your CNC carving and laser engraving projects. ———— Key Features Effortless Connectivity Connect to your CNC router or laser machine directly over Wi-Fi without the need for login credentials. Start managing carving and engraving tasks instantly from your device. Simplified Network Setup A fast three-step wireless configuration process allows you to connect your laser machine easily and begin engraving in just minutes. Intuitive Control Interface The app features a clean, user-friendly interface optimized for CNC and laser operations. Easily manage essential functions such as probe settings, feed rate adjustments, zeroing, and axis control with confidence. ———— Laser Engraving Features Convenient File Re-Editing Edit your design files anytime and save them for future engraving or carving sessions, enabling a more flexible and efficient workflow. Advanced Image Processing Supports multiple image processing modes, including image editing and one-click generation of barcodes and QR codes, expanding creative possibilities. Vector Path Generation Generate vector paths from bitmap and sketch images to enhance precision and unlock more advanced design capabilities. Real-Time Monitoring Monitor carving and engraving tasks in real time with live updates on coordinates, progress, and task status, ensuring full visibility throughout the operation. Quick Image Upload Upload images directly from your phone’s camera or photo gallery. Multiple image formats are supported, including PNG, JPG, and BMP. ———— Continuously Improved Experience With ongoing updates through version 2.4, the Genmitsu App continues to improve performance, usability, and stability, delivering a smoother and more powerful experience for CNC carving and laser engraving users.
Screenshots
Verdict
The clearest difference is price: Genmitsu at Free against CNC Blue's $2.99. Genmitsu also leads on rating (3.4 vs 2.5) and ratings volume (25 vs 4). CNC Blue's advantage is update cadence (every 3 days vs every 2 months) and review sentiment (50% vs 23%). On ads, in-app purchases, device support and iOS requirement 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
Genmitsu is free to download; CNC Blue costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Genmitsu holds the better App Store score, 3.4 against 2.5. That said, the two scores are not equally well evidenced: Genmitsu has 25 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of CNC Blue's written reviews are positive against 23% of Genmitsu's, so the app with the better star average is not the one people write more warmly about.
CNC Blue ships an update every 3 days, Genmitsu every 2 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | CNC Blue | Genmitsu |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 2.5 (4 ratings) | 3.4 (25 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 23.1% of reviews |
| Number of ratings | 4 | 25 — better |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.5 | 13 — better |
| Further details — not scored | ||
| Size | 1 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | Mehmet SIMSEK | SAINSTORE INC |
Customer experience
CNC Blue
Genmitsu
In-app purchases
CNC Blue
No in-app purchases
Genmitsu
No in-app purchases









