Master It vs CodeMaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Master It
Instantly create and print master key systems without complex calculations. Supports various keyways and pin systems, with options for randomization and secure saving. Ideal for on-the-fly key management.
- Instant master key system creation
- Zero math required
- Supports multiple keyways
- Randomize TMK generation
- Print, email, or save systems
- 5 or 6 pin system support
- Shake to lock/unlock functions
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***FEATURED IN KEYNOTES MAGAZINE*** Create and print master key systems in an instant with Master It. Master It is perfect for small or on-the-fly systems. Create a master key matrix immediately with zero math and zero worries of cross-keying. Either enter in your own TMK or tap Randomize to create a complete master key system containing a single TMK, a single sub master, and up to 64 change keys. Each output delivers a fixed sub master and set of change keys. Master It is built to create a system immediately to print and keep in your records at your shop. It is capable of saving and reloading one project at a time. The goal with Master It is to create and AirPrint a system in an instant. If on the road when printing isn't available, email and save features are secondary backups prior to printing. Email is also ideal when a printer is not AirPrint compatible. Currently supports: Kwikset .023" Corbin Russwin .028" Weiser / Falcon .018" Ilco-Unican .018" Schlage .015" Arrow .014" Sargent .0125" & .020" Corbin .014" Obeys MACS rules for each selected system. AirPrint, Email, or Save any system created. Create 5 or 6 pin systems. Randomize feature to always generate a completely random TMK every time. Use the two filters to restrict the TMK to only shallow depths, or to always include the shallowest and deepest cuts. Tap anywhere on the matrix to select or deselect a bitting for the key chart. Shake your iDevice to lock the primary functions on the main screen. This is to prevent unwanted changes (i.e. accidentally tapping Reset). To unlock, just shake again. All change keys can be individually identified. Use the Project Name / Keyway box for temporary saving information. The actual printout will allow you to write in the business name, personal name, address, keyway, and phone number conveniently. After printing, the system can be continued manually on paper. Additionally, you can tap on each change key to display the pinning. Compatibility: All iPhone, iPad, iPod Touch types and generations with a minimum iOS version of 12.0 Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com
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.
Screenshots
Verdict
The clearest difference is review sentiment: Master It at 76% against CodeMaster's 0%. Master It also leads on rating (3.7 vs 1.0) and ratings volume (18 vs 1). CodeMaster's advantage is price (Free vs $6.99) and update cadence (fortnightly vs every 2 months). 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
CodeMaster is free to download; Master It costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Master It holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: Master It has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of Master It's written reviews are positive against 0% of CodeMaster's.
Master It ships an update every 2 months, CodeMaster fortnightly. The most recent releases landed on September 30, 2026 and June 4, 2026 respectively.
| Parameter | Master It | CodeMaster |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 3.7 (18 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 76.2% of reviews — better | 0.0% of reviews |
| Number of ratings | 18 — better | 1 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #198 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Farren Domenici | Redt Inc. |
Customer experience
Master It
CodeMaster
In-app purchases
Master It
No in-app purchases
CodeMaster
No in-app purchases









