Write ID vs KeyCodeCheck
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Write ID
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Write ID is an APP that can be used to Write and modify device ids for multiple devices of our company - The APP is mainly used for internal testing and customers who purchase the company's products -The APP is mainly released in China and other countries
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 requiredβjust 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 iOS requirement: Write ID at 9.0 against KeyCodeCheck's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Write ID ships an update every 6 weeks, KeyCodeCheck every 2 months. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.
| Parameter | Write ID | KeyCodeCheck |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks β better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 9+ | 4+ |
| Developer | Shenzhen Chileaf Eletronics Co., LTD | Kenta Akimoto |
In-app purchases
Write ID
No in-app purchases
KeyCodeCheck
No in-app purchases









