CodeMaster vs KeyCodeCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CodeMaster
This cloud-based mobile application provides key cutting and data management for MIRACLE key cutting machines. It allows users to operate their key machines remotely via Bluetooth, offering convenient access and real-time data updates.
- Cloud-based key cutting
- Bluetooth machine operation
- Real-time data updates
- Shared machine access
- Quick key search
- Usage statistics
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- Introduction CodeMaster-M is a cloud based app that offers key cutting and data management features for MIRACLE key cutting machines. It's a transition of PC or tablet based application to mobile. So the MIRACLE key cutting machine is operated easily through this app anytime, anywhere on your palm. - Convenient Features 1) No update, no backup is needed thanks to cloud-based web technology applied to CodeMaster-M app. Key data are always up to date. 2) Key cutting is ready at any time with a mobile phone always in your pocket. 3) A key machine can be shared by several user's mobile phones. 4) Key search becomes easier and faster by quick and smooth response of mobile device 5) New statistics feature shows daily, weekly and month key machine usage - Caution Be aware of the following limitation of CodeMaster-M before using the app. 1) CodeMaster-M connects to the MIRACLE key machine via Bluetooth wireless communication technology. So it's available only with the Bluetooth equipped MIRACLE key machines and mobile devices. 2) CodeMaster-M is only for MIRACLE key machine users. The app will not run unless it's connected to the machine via Bluetooth. 3) Once the connection is established, sign-in with an email address and log-in is necessary to start the app. 4) After sign-in, check an email message sent by CodeMaster-M server to verify the email address. Log-in is available after this verification. 5) App responsiveness depends on the internet speed. Running this app under faster internet connection is recommended. 6) We don't take any responsibility for failure caused by this app. 7) Because CodeMaster-M is a cloud-based app, the app is run only when the internet is available. Be aware that some mountainous area, island, underground parking lot, and etc. can offer no or poor internet connection. For more information, please ask for support at tech-support@iredt.com. Thanks.
KeyCodeCheck
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The new feature is called "Key Grid." The key codes are displayed in a grid format. It automatically scrolls and highlights according to the keys you type. You can quickly and comprehensively check which keys are correctly recognized or not recognized by your device. --- "KeyCodeCheck" is an easy-to-use hardware keyboard keycode confirmation app with a simple UI for intuitive operation. Features: 1. Intuitive UI: With a straightforward design, navigating the app is effortless. No complicated procedures are required—just open, type a key, and confirm. That's it. 2. Key Typed Confirmation: Simply type a key, and its corresponding keycode is instantly displayed. This user-friendly app allows you to quickly retrieve the information you need. 3. Compatibility with Various Keyboards: Compatible with a variety of hardware keyboards, whether USB or Bluetooth connected. No need to worry about the connection method; you can check the keycodes for any keyboard. 4. Support for Special Keys: Shift key, Command key, Option key, Capslock key, and other special keys are supported. It works seamlessly with the operation of your familiar keyboard. 5. Keydown/Keyup Display: Displaying both the moment a key is pressed (keydown) and released (keyup), this feature is perfect for those who want to closely examine keyboard behavior. 6. Key Grid The key codes are displayed in a grid format. It automatically scrolls and highlights according to the keys you type. You can quickly and comprehensively check which keys are correctly recognized or not recognized by your device. Explore and confirm keyboard keycodes effortlessly with "KeyCodeCheck". Quickly identify the keycodes for each key on your device. Feel free to ask questions or provide feedback. Enjoy the simplicity of KeyCodeCheck.
Screenshots
Verdict
The clearest difference is update cadence: CodeMaster at fortnightly against KeyCodeCheck's every 2 months. CodeMaster also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CodeMaster ships an update fortnightly, KeyCodeCheck every 2 months. The most recent releases landed on June 4, 2026 and September 19, 2026 respectively.
| Parameter | CodeMaster | KeyCodeCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Redt Inc. | Kenta Akimoto |
In-app purchases
CodeMaster
No in-app purchases
KeyCodeCheck
No in-app purchases









