BLE Update vs KeyCodeCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLE Update
This utility app enables convenient over-the-air firmware updates for Bluetooth Low Energy devices. It is specifically designed for devices utilizing the Arendi BLE-Platform, allowing seamless updates directly from your mail application.
- Over-the-air firmware updates
- Bluetooth Low Energy device support
- Arendi BLE-Platform integration
- Convenient updates from mail app
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Keep your Bluetooth Low Energy devices running the latest firmware — quickly, securely, and without ever plugging in a cable. Ble Update is the firmware update companion for devices built on the Arendi BLE‑Platform. It scans for nearby BLE devices, connects, and pushes new firmware directly over the air — no PC, no cables, no workshop visit required. Built for the field, not just the lab: Nordic DFU support — the proven standard for firmware updates on Nordic Semiconductor‑based BLE devices SMP (Simple Management Protocol) support — for the latest generation of connected devices, including those built on Zephyr and MCUboot Guided, step‑by‑step update flow — connect, select the firmware file, and update in a few taps Reliable over‑the‑air delivery — built to handle real‑world BLE conditions out in the field Works straight from your phone or tablet — take firmware updates wherever your devices are Whether you're a technician updating a single device on‑site or managing a whole fleet of connected products, Ble Update gives you a fast, dependable way to keep firmware current — right from your pocket. Part of the Arendi BLE‑Platform ecosystem.
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: KeyCodeCheck at every 2 months against BLE Update's every 23 months. BLE Update's advantage is iOS requirement (15.0 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.
BLE Update ships an update every 23 months, KeyCodeCheck every 2 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.
| Parameter | BLE Update | KeyCodeCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 23 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 124 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Arendi AG | Kenta Akimoto |
In-app purchases
BLE Update
No in-app purchases
KeyCodeCheck
No in-app purchases









